1st year chemistry important mcqs for exam 2013

7/27/2019 1st Year Chemistry Important Mcqs for Exam 2013

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1st Year Chemistry Important Mcqs for Exam 2013

Chapter 1

Fundamental Concepts in Chemistry

Q. 1. The soul of chemistry is its ealin! "ith

1. Internal structural chan!es in matter

2. Composition of matter

3. #roperties of matter

$. Composit ion an properties of matter

%&

Q. 2. 'll of the follo"in! statements are incorrect for 20 mol of hyro!en peroxie except

1. it has 20 mol of hyro!en atoms

2. it has 30 mol of oxy!en atoms

3. it has (0 mol of atoms

$. 30 mol of hyro!en atoms

%c&

Q. 3. If proton num)er of t"o atoms is same then it can )e conclue that

1. they are isotopes

2. compouns of )oth "ith CI2"ill )e similar in reacti*ity to"ars other compouns

3. )oth ha*e same colors

$. )oth ha*e same meltin! points

%)&
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Q. $. ' chemist poure lemon +uice on soil, the iea that he may ha*e in his min is that

1. there may )e a possi)il ity of a chemical reaction

2. lemon +uice is an!erous to health

3. lemon +uice is an!erous to health

$. "ater shoul )e preferre o*er lemon +uice for rin-in!

%a&

Q. . /r. han has isco*ere t"o isotopes of an element "ith atomic num)er 11. The relati*e a)unance of isotopes 11ue300an 11ue30is 04 an 304respecti*ely. The a*era!e atomic "ei!ht of ue is

1. 301. a.m.u

2. 302. a.m.u

3. 303. a.m.u

$. 30$. a.m.u

%a&

Q. 5. 6hich of the follo"in! is not relate to a.m.u

1. !ram

2. -ilo!ram

3. micro!ram

$. !ram7lit


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%&

Q. . The num)er of si!nificant fi!ures in 0.00200 is

1. t"o

2. three

3. fi*e

$. one

%)&

Q. (. 'll of the follo"in! statements are incorrect except

1. precision an accuracy shoul !o sie )y sie in a scientific "or-

2. scientific "or- must )e precise, accuracy is not essential

3. scientific "or- must )e accurate, precision is not essential

$. 8calculations must )e mae )efore any experiment

%a&

Q. . Empirical formula an formula unit of an ionic compoun

1. are al"ays similar

2. are al"ays ifferent

3. may )e similar or ifferent

$. ionic compouns on9t9 ha*e any empirical formula

%c&

Q. 10. Copper %II& oxie is mixe "ith or!anic compoun urin! com)ustion analysis. The purpose is

1. to carry out complete com)ust ion


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2. to reuce the economy of the process

3. to reuce the time for completion of the reaction

$. all of the a)o*e

%a&

Q. 11. :ismar- )ro"n is a ye. Its molar mass is 22(.3 !7mol. 6hen the ye "as analy;e )y a scientist, it "as foun that it contains 30.5(4 nitro!en.


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%c&

Q. 1$. Compoun ha*in! hi!hest )oilin! point amon! the follo"in! is

1.


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1. 100 moles of )ons

2. 100 moles of electrons

3. 30 atoms

$. 2 moles of hyro!en )ons

%)&

Q. 1(. The *olume of one -ilo!ram of "ater at $oC is equal to one litre. The temperature of "ater is -ept at $oC )ecause "ater

1. has no issol*e !asses at this temperature

2. has maximum ensity at th is temperature

3. polarity of "ater molecule is least at this temperature$. ipole moment has maximum *alue at this temperature

%)&

Q. 1. ' compoun contains t"o elements an Y percenta!e of is 204 %'t."t D $0& an that of Y is (04 %'t."t D(0&. The empirical formula of the compounis

1. Y2

2. 2Y

3. 3Y

$. Y

%'&

Q. 20. ' piece of paper is )urnt in air, the !as prouce is passe throu!h istille "ater. The #< of "ater solution "ill )e

1. 1

2.

3. 2.1

$. 5.(


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%&

Q. 21. 6hich of the follo"in! is a su)stance=

1. sea "ater

2. )rass

3. tape "ater

$. !raphite

%&

Q. 22. @ree;in! point of a su)stance is a temperature at "hich a liqui su)stance is con*erte to soli, it is

1. al"ays lo"er than its meltin! point

2. usually a l ittle lo"er than its meltin! point

3. al"ays hi!her than i ts melt in! point

$. exactly the same as its meltin! point

%&

Q. 23. um)er of co*alent )ons in 10 mol of car)on tetrachlorie is

1. 2.$ x 102

2. $0

3. $ x 102$


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$. 5.$ x 1021

%a&

Q. 2$. ' stuent su)tracte 0.000 from 10.23$5( an reporte the result as 10.23$01. :ut his frien tol him that the result "as "ron!. 6hat is the correctresult=

1. 10.23$01

2. 10.23$01(

3. 10.23$

$. 10.23

%&

Q. 2. The follo"in! statement containe in a stuent9s la)oratory report is a conclusion.

1. a !as is li)erate

2. colour of the !as is !reenish yello"

3. oxie of the !as is stron!ly aciic

$. the !as is chlorine

%&

Q. 25. If 10! each of uranium an hyro!en are con*erte into ener!y accorin! to equation E D mc2

1. ener!y o)taine from uranium "ill )e too much !reater than that of hyro!en

2. ener!y o)taine from hyro!en "ill )e a little )it less than that of uranium

3. ener!y o)taine from hyro!en an uranium "ill al"ays )e exactly equal

$. iamon

%c&

Q. 2. ' stuent analy;e a sample of sea "ater an foun that it containe 2.3! of aCi, 0.00! of M!Fo$, 0.23$! of CaCI2an 50.12! of


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1. 52.5

2. 52.5

3. 52.0

$. 5.

%&

Q. 2(. ' 0.00 mG sample of a cou!h mixture prepare )y a pharmacist "as foun to ha*e a mass of $5.0!. "hat is the ensity %in !7mG& of this mixture. Ftate tothe correct num)er of si!nificant fi!ures=

1. 0.2

2. 0.20

3. 0.200

$. 1.0(

%)&

Q. 2. B;one %B3& filters the cosmic rays of sunli!ht.


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1. CaFB$

2. CaFB3. H


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1. aCIB2

2. aCIB3

3. aCIB

$. aCIB$

%&

CHAPTER 2

GASES

Q. 1. #rofessor Qa""i tol his stuents that air is a mixture )ecauseJ suenly a stuent raise his han an sai

1. it is colourless

2. oxy!en can )e remo*e from it

3. i ts composition is ifferent at ifferent altitues

$. it has ifferent properties from its constituents

%c&

Q. 2. Ima!ine /r. han is sittin! in a room. The room is close from all sies, no entry, no exit of any !as. If the room expans suenly then

1. he "ill )e fri!htene

2. his )loo pressure "ill ecrease

3. he "ill feel cool

$. he "ill feel "armth


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%c&

Q. 3. "hich of the follo"in! elements "ill ha*e stron!est Kan /er 6aal force of attraction )et"een its molecules

1. hyro!en

2. oxy!en

3. chlorine

$. nitro!en

%c&

Q. $. The )ea-er sho"n in the fi!ure contains slurry of ice an "ater, the three thermometers @ahrenheit, el*in an Centi!rae place in it. The thermometersare represente )y ', : an C respecti*ely. The lo"est reain! "ill )e on thermometer.

1. '

2. :

3. C

$. :oth ' an C

%c&

Q. . 6hich thermometer "ill ha*e its reain! 23 e!rees !reater than that of thermometer C=

1. '

2. :

3. C has !reater reain! than all other thermometer

$. : has 23 e!rees !reater reain! than '


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%)&

Q. 5. The temperature recore )y el*in scale is

1. 0

2. 23

3. 33

$. ')solute scale is una)le to recor this temperature

%)&

Q. . If three )irs calle B2, CI2an


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%)&

Q. . If pressure on a !as is increase from 2 atm to $ atm than its *olume "ill ecrease from

1. 5G to $G

2. (G to 2G

3. 3G to 1G

$. $G to 2G

%&

Q. 10. 'n un-no"n !as has a ensity of 2.$ !7G at 1. atmospheric pressure an 2 oC. The !as is

1. r

2. CI2

3. FB2

$. 'r

%&

Q. 11. This is a -no"n fact that the molar *olumes of ifferent !ases at F.T.# are

1. l ittle )it !reater than the molar *olumes of liquis

2. l ittle )it less than the molar *olumes of solis

3. a)out the same as the molar *olumes of liquis

$. much lar!er than the molar *olumes of l iquis an solis

%&

Q. 12. The )eha*ior of a !as is nonLieal at


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1. lo2" temperature an lo" pressure

2. hi!h temperature an hi!h pressure

3. hi!h temperature an lo" pressure

$. lo" temperature an hi!h pressure

%&

Q. 13. 'mmonium #erchlorate is use as soli fuel in roc-ets. /urin! the process it ecomposes accorin! to the reaction !i*en )elo"

$


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%&

Q. 1. ' -i has a helium fille )alloon "hich eflates at the rate of 1.00 liter7ay )y


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1.


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Q.1. I hear Islamian !enius sayin! that !lass must )e a super coole liqui. The reason that he mi!ht ha*e in his min is that !lass has

1. efinite *olume

2. efinite shape

3. crystalline structure

$. no crystalline structure

%&

Q. 2. Fome su)stances are !oo conuctor of electricity in )oth the soli an liqui states. These su)stances are !enerally

1. ionic su)stances

2. metallic su)stances

3. molecular solis

$. co*alent net"or- solis

%)&

Q. 3. 'ir can )e istille fractionally )ecause the constituents of the air

1. can )e liquefie

2. ha*e ifferent )oilin! points

3. are !ases at room temperature

$. ha*e ifferent ensities

%)&

Q. $. There are three ifferent su)stances, 'r!on,


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%a&

Q. . ' stuent put t"o e!!s ' an : in '?

3. equal to that of e!! >'?

$. unaffecte instea

%a&

Q. 5. eepin! in min ifferent factors "hich affect the meltin! point of a su)stance, the compoun ha*in! hi!hest meltin! point amon! the follo"in! is

1. aCI

2. A)CI

3. GiCI

$. CsCI

%a&

Q. . Islamian !enius tol his follo"s that in a crystal the atoms are locate at the position of

1. ;ero potential ener!y

2. infinite potential ener!y

3. maximum potential ener!y

$. minimum potential ener!y

%'&

Q. (. eepin! in min the concept of char!e ensity, compoun ha*in! hi!hest lattice ener!y is


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1. CI

2. M!B

3. Gi:r

$. a@

%)&

Q. . Meniscus is the shape of the surface of a liqui in a cylinrical container. It may )e conca*e, con*ex or plane. @or molten metals

1. meniscus is conca*e

2. meniscus is con*ex

3. meniscus is plane

$. meniscus may )e conca*e or con*ex epenin! on the nature of the metal

%)&

Q. 10. 'll of the follo"in! su)stances are crystalline except

1. Ice

2. Car)on %iamon&

3. Fucrose

$. #lastic

%&

Q. 11. 'll of the follo"in! ha*e clea*a!e planes except

1. ionic crystals

2. co*alent crystals

3. molecular crystals

$. metallic crystals


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%&

Q. 12. Coorination num)er of a8in aCI is

1. 1

2. $

3. 2

$. 5

%&

Q. 13. @or a crystal system a ) c an the example for this crystal system is

1. CuFB$.


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1. iamon

2. aCI

3. :r

$. CF

%&

Q. 15. erosene is liqui at room temperature ue to

1. hyro!en )onin!

2. or!anic nature

3. ipoleLipole forces

$. molecular si;e

%&

Q. 1. 'll of the follo"in! are net"or- solis except

1. FiB2

2. raphite

3. F(

$. /iamon

%c&

Q. 1(.


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Q. 1. :oilin! point of phosphine %#


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CKapour pressure of "ater at 0o

C is mm

1. )oilin! point of "ater "ill )e 0oC at mm

2. )oilin! point of "ater "ill )e 0 oC

3. if external pressure is mm

$. )oilin! point of "ater is 100 oC at 50 mm

%c&

Q. 2$. 6hat is the typical ran!e of the hyro!en )on

1. P 2 - per mole of )ons

2. P 2 - per molecule


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3. 00 - per mole of )ons

$. 1 P 2 - per mole of )ons

%a&

Q. 2.


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Q. 2(. ' "hite su)stance melts "ith some ecomposition at 30 oC. 's a soli, it is non conuctor of electricity )ut it issol*es in "ater to from a conuctin!solution. The "hite su)stance is

1. a co*alent net"or- soli

2. an ionic soli

3. a molecular soli

$. a metallic soli

%)&

Q. 2. eepin! in min ifferent factors "hich affect the )oilin! point of a su)stance, element ha*in! hi!hest )oilin! amon! the follo"in! is

1.


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%a&

Q. 32. eepin! in min ifferent factors "hich affect the )oilin! point of a liqui, element ha*in! lo"est )oilin! point amon! the follo"in! is

1. @2

2. CI2

3. :r 2

$. I2

%a&

Q. 33. ' chemist "as a)le to measure the *alue of lattice ener!y of CI to )e 50 -7mol. @rom this experiment he conclue that

1. lattice ener!y of :r is 530 -7mol an that of I is 55 -7mol



$. lattice ener!y of :r is 30 -7mol an that of I is 5 -7mol

%)&

CHAPTER &

AT%'C STR"CT"RE

Q.1. Color of the !lo" prouce in the ischar!e tu)e

1. epens on the pressure in the ischar!e tu)e

2. epens on the metal use as cathoe

3. epens on the !as use in the ischar!e tu)e

$. oes not epen on the nature of the !as use in the ischar!e tu)e


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%c&

Q. 2. /r. han tol his stuents that if char!e on electrons in a cham)er is 3.0 x 10 11 coulom) than mass of electrons must )e

1. .1 x 10L31-!

2. ( -!

3. $ -!

$. 2 -!

%&

Q. 3. e7m ratio of the canal rays is less than that of cathoe rays. The reason is

1. !reater mass of canal ray particles

2. !reater char!e of the canal ray particles

3. !reater mass an char!e of the canal ray particles

$. actually e7m ratio of canal rays is !reater than that of the cathoe rays

%a&

Q. $. uclear raiation is emitte )y those elements "hose

1. molecules are sta)le

2. molecules are unsta)le

3. nuclei are sta)le

$. nuclei are unsta)le

%&

Q. . Lrays are !oo ioni;ers of !ases )ecause they


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1. ha*e !reater mass

2. ha*e positi*e char!e

3. ha*e !reater mass an posit i*e char!e

$. are helium nuclei

%c&

Q. 5. Consier the follo"in! reaction

12

5

1

(

:e 8


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This reaction is

1. a chemical reaction

2. a nuclear reaction

3. an example of artif ic ia l raioacti* ity

$. an exothermic reaction

%c&

Q. . Aoent!en isco*ere Lrays an Mosley foun that the frequency of the Lrays emitte from anoe increases "ith the

1. increase in the mass num)er of the metal use as anoe

2. ecrease in the mass num)er of the metal use as anoe

3. ecrease in the proton num)er of the metal use as anoe

$. increase in the proton num)er of the metal use as anoe

%&

Q. (. Aaiation emitte )y exite atoms is

1. in the form of continuous "a*es

2. in the form of quanta

3. nuclear raiations

$. ultra*iolet raiation

%)&

Q. . If the electron of hyro!en atom +umps of >M? shell then the raius of this excite hyro!en atom "ill )e

1. (.$5$ 'o

2. $.51 'o

3. 2.115 'o

$. 0.2 'o


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%)&

Q. 10. If a particle of mass 0.1!ram mo*es "ith a *elocity of 10,000 m7s then the "a*elen!th of the "a*e associate "ith this particle is

1. 5.525 x 10L3$m

2. 2.1$ x 10L3m

3. 3.313 x 10L21m

$. 1.32 x 10L1(m

%a&

Q. 11. Fecon ioni;ation ener!y

1. is al"ays less than f irst ioni;ation ener!y

2. is al"ays !reater than first ioni;ation ener!y

3. is equal to the f irst ioni;ation ener!y

$. may )e !reater or less than the first ioni;ation ener!y epenin! on the nature of the element

%)&

Q. 12. >Ioni;ation ener!ies of the elements of the th!roup are !reater than those of 5 th!roup?. It is )ecause

1. th!roup elements ha*e less electrone!ati*ity

2. 5th!roup of elements ha*e !reater shielin! effect

3. th!roup element ha*e !reater shielin! effect

$. th!roup elements ha*e half fille atomic or)itals


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%&

Q. 13. ' soium lamp emits yello" li!ht "ith a "a*elen!th of ( nm. 6hat is the ener!y of a sin!le photon in this li!ht=

1. 3.3 x 10L1oules

2. 1.12 x 10L2 oules

3. 1.1 x 10L33oules

$. .0 x 101oules

%a&

Q. 1$. The ener!y associate "ith the transition of an electron from the nD1 state to the nD3 state of < atoms isJ

1. 81.$ x 10L1oules

2. 81.$ x 10L1(oules

3. 81.$ x 10L1( oules

$. L1.$ x 10L1oules

%)&

Q. 1. 'll of the follo"in! are electroma!netic raiations except

1. re li!ht

2. soun "a*es

3. xLrays

$. photon

%)&

Q. 15. This shape of a 2s or)ital resem)lesJ

1. a hoc-ey puc-

2. an %'merican& foot)all


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3. an ellipse

$. a sphere

%&

Q. 1. 6hich or)ital of the follo"in! has a principal quantum num)er of 3 an an an!ular momentum quantum num)er of 2

1. 3s

2. 3

3. $f

$. 3f %)&

Q. 1(. 6hich of the follo"in! has the hi!hest ener!y=

1. !amma rays

2. Lrays

3. ltraL*iolet raiation

$. Rraio "a*es

%a&

Q. 1. 'll of the follo"in! elements are correct for atomic or)itals except

1. pLsu) ener!y le*el has 3 or)itals

2. sLor)ital has spherical shape

3. ener!y of $s is less than that of $

$. 'll or)itals ha*e $ lo)es

%&

Q. 20. Karious *alues of the quantum num)ers %n, 7, m, ms& are liste )elo". 6hich is a possi)le set of *alues for one of the electrons in an iron atom in its!roun state=


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1. %1, 1, 0, H&

2. %$, 0, 1, H&

3. %$, 1, 0, L172&

$. %3, 2, 1, L172&

%&

Q. 21.


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%)&

Q. 2$. 6hich of the follo"in! has the lar!est "a*elen!th=

1. *isi)le li!ht

2. xLrays

3. infrare li!ht

$. ultra*iolet raiation

%c&

Q. 2. Felect the arran!ement of electroma!netic raiation "hich starts "ith the lo"est ener!y an increases to !reatest ener!y.

1. raio, *isi)le, infrare, *isi)le, ultra*iolet

2. micro"a*e, infrare, *isi)le, ultra*iolet

3. *isi)le, ultra*iolet, infrare, !amma rays

$. Lraiation, *isi)le, infrare, micro"a*e

%)&

Q. 25. ' raio station )roacasts music at .1 M


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1. 3.$ x 10L$0

2. 3.$ x 10L30

3. 3.( x 10L25

$. 3.( x 10L1 %&

Q. 2(. The si;e of an atomic or)ital is associate "ith

1. principal quantum num)er %n&

2. an!ular momentum quantum num)er % I&

3. ma!netic quantum num)er %mI&

$. spin quantum num)er %ms&

%a&

Q. 2. 6hich of the follo"in! is a correct set of quantum num)ers for an electron in a for)ital=

1. n D , I D 3, mID 812. n D , I D 2, mID 83

3. n D $, I D 3, mID 0

$. n D $, I D 2, mID 81

%a&

Q. 30. In the quantum mechanical treatment of the hyro!en atom, "hich one of the follo"in! com)inations of quantum num)ers is not allo"=

1. 3, 1, L1

2. 3, 2, 2

3. 3, 2, L1

$. 3, 3, 2


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%&

Q. 31. >Each electron in an atom must ha*e its o"n unique set of quantum num)ers? is a statement of

1. 'uf)au principle

2. #auli exclusion principle

3.


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Q. 3$. 'll of the follo"in! statements are correct for atomic structure an quantum num)ers except

1. In a !i*en atom, the maximum num)er of electrons ha*in! principal quantum num)er n D 3, is 1(

2. The num)er of or)itals in a !i*en fsu)shell is

3. @or nD$, the lar!est possi)le *alue of Iis 3

$. @or nD$, the lar!est possi)le *alue of mIis 2

%&

Q. 3. Felect the correct electron confi!uration for Cu %D2&

1. S'r $s23

2. S'r$s1310

3. S'r$s2$p533

$. S'r$s1$

%)&

Q. 35. 'rran!e potassium, ru)iium, calcium an )arium in orer of increasin! atomic si;e.

1. N Ca N A) N :a

2. Ca N N A) N :a

3. Ca N N :a N A)

$. N Ca N :a N A)

%)&Q. 3. Element ha*in! smallest atomic raius amon! the follo"in! is


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1. Gi

2. e

3. A)

$. Fr

%)&

Q. 3(. The arran!ement of soium, oxy!en, fluorine an strontium on the )asis of increasin! first ioni;ation ener!y is

1. a N Fr N B N @

2. Fr N a N B N @

3. Fr N a N @ N B$. a N Fr N @ N B

%)&

Q. 3. Elements "ith UUUUU first ioni;ation ener!ies an UUUUUUU electron affinities !enerally form cations.

1. lo", *ery ne!ati*e

2. hi!h, posit i*e or s li!ht ly ne!ati*e

3. lo", posit i*e or sli!htly ne!ati*e

$. hi!h, *ery ne!ati*e

%c&

Q. $0. In a Milli-an oilLrop experiment, the char!es on se*eral ifferent oil rops "ere as follo"sJ L.2V L$.$$V L2.5V L(.((. The units are ar)itrary. 6hat is theli-ely *alue of the electronic char!e in these ar)itrary units=

1. L1.11

2. L1.$(

3. L2.22

$. L2.5


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%)&

CHAPTER (

CHE'CAL )%$#$G

Q. 1. 6hich of the follo"in! compouns has maximum ionic character=

1. aCI

2. Cs@

3. :r

$. M!CI2

%)&

Q. 2. 6hich of the follo"in! molecules or ions is nonplanar, i.e., has at least one atom that is not in the same plane as the others=

1. :


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3. pyramial an polar

$. )ent an nonLpolar

%)&

Q. $. 6hich of the follo"in! molecules has the smallest an!le )et"een a+acent )ons=

1. CB2

2. C


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Q. . 6hich of the follo"in! pairs of atoms are most li-ely to form a co*alent compoun=

1. a, @

2. Cu, CI

3. C, B

$. Gi, @

%c&

Q. (. 6hich molecule has one pair of non)onin! electrons on the central atom=

1. #CI3

2. CB2

3. FB3

$. :@3

%a&

Q. . 6hich of the follo"in! "ill ha*e the lar!est ipole moment=

1.


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%&

Q. 11. 6hat is the state of hy)rii;ation of the car)on atoms in ethylene, C2


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1. The num)er of MB9s in a molecule equals t"ice the num)er of constituent atomic or)itals

2. 's )onin! MB9s )ecome equal ly less sta)le

3. In MB9s, the num)er of )onin! electrons equals the num)er of anti)onin! electrons

$. Each )onin! MB can accommoate only one electron

%)&

Q. 1. 'll of the follo"in! statements are false except

1. The MB9s in a molecule equals t"ice the num)er of constituent atomic or)itals.

2. 's )onin! MB9s )ecome more sta)le, anti)onin! MB9s )ecome equally less sta)le.

3. In MB9s, the num)er of )onin! electrons equals the num)er of anti)onin! electrons.$. Each )onin! MB can accommoate only one electron.

%)&

Q. 15. 6hat is the hy)rii;ation of phosphorus in #CI3=

1. sp2

2. sp3

3. sp

$. sp32

%)&

Q. 1. 'nalysis of an un-no"n su)stance sho"e that it has a hi!h )oilin! point an is )rittle. It is an insulator as a soli )ut conucts electricity "hen melte.6hich of the follo"in! su)stances "oul ha*e those characteristics=

1.


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Q. 1(. 'rran!e the follo"in! )ons in orer of increasin! )on stren!th.

CL@, CL:r, CLI, CLCI

1. CL@ N CLCI N CL:r N CLI

2. CLI N CL:r N CLCI N CL@

3. CL:r N CLI N CLCI N CL@

$. CLI N CL:r N CL@ N CLCI

%)&

Q. 1. :ase on electrone!ati*ity trens in the perioic ta)le, preict "hich of the follo"in! compouns "ill ha*e the !reatest 4 ionic character in its )ons.

1.


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3. tri!onal pyramial

$. tetraheral

%c&

Q. 22. #reict the ieal )on an!les aroun car)on in C2I2usin! the molecular shape !i*en )y the KFE#A theory.

1. 0o

2. 10o

3. 120o

$. 1(0o

%&

Q. 23. #reict the actual )on an!les in :r@3usin! the KFE#A theory.

1. more than 120o

2. )et"een 10oan 120o

3. )et"een 0o

an 10o

$. less than 0o

%&

Q. 2$. 6hich of the follo"in! has no net ipole moment=

1. 2B2. @3

3.


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Q. 2. ' molecule "ith the formula '2uses . To form its )ons.

1. sphy)ri or)itals

2. sp2hy)ri or)itals

3. sp3hy)ri or)itals

$. sp3d hy)ri or)itals

%a&

Q. 25. Kalence )on theory preicts that car)on "ill use ZZP hy)ri or)itals in the car)onate anion, CB32L

1. sp

2. sp2

3. sp3

$. sp3

%)&

Q. 2. Kalence )on theory preicts that sulfur "ill use ZZP hy)ri or)itals in sulfur ioxie, FB2.

1. sp

2. sp2

3. sp3

$. sp3

%)&

Q. 2(. 6hich one of the follo"in! statements a)out or)ital hy)rii;ation is incorrect=

1. The car)on atom is CB2 is sphy)rii;e

2. The nitro!en atom in


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%)&

Q. 2. @or "hich one of the follo"in! molecules is the inicate type of hy)rii;ation not appropriate for the central atom=

a. :eCI2 sp2

). Fi


49/118

2. Com)ination of t"o 2p or)itals may result in either [ MBs.

3. ' species "ith a )on orer of ;ero "il l )e sta)le

$. In a sta)le molecule ha*in! an e*en num)er of electrons, all electrons must )e paire.

%&

Q. 33. Bne can safely assume that the 3sL an spL or)itals "ill form molecular or)itals similar to those forme "hen 2sL an spLor)itals interact. 'ccorin! tomolecular or)ital theory, "hat "ill )e the )on orer for the CI28ion=

1. 0.

2. 1

3. 1.

$. 2

%c&

CHAPTER *

ELECTRCS %F CHE'CAL REACT%$S

Q.1. 'll of the follo"in! are state functions except

1. #


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2. K

3. q

$. ?. 6hen the cyliner is heate a reish )ro"n color e*elops. It means that the !as present in the cyliner "as

1. B2

2. 2B

3. 2B

$. 2B$

%&

Q. 3. ' )ea-er contains a saturate solution of potassium #erchlorate. 6hen potassium chlorie %CI& is ae to this solution, some of the potassium#erchlorate is precipitate. It means that

1. CIB$is stron! electrolyte that CI

2. Folu)ility of CIB$is !reater than that of CI

3. :oth CIB$an CI are solu)le in "ater to some extent

$. CI is a stron! electrolyte as compare "ith CIB$

%&

Q. $. In salt analysis 3r

!roup )asic raicals %'l38, @e38

etc& are etecte )y ain!


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1. solu)le in "ater

2. insolu)le in "ater

3. aciic

$. )asic

%&

Q. 2. Equi*alent "ei!h of sulfuric aci is $, thus 1 solution of sulfuric aci "ill contain

1. (! of


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Q. . Mole fraction of "ater in tap "ater "ill )e

1. equal to 1

2. less than 1

3. !reater than 1

$. "ill )e some"hat equal to 2

%)&

Q. 5. Molality of pure "ater is

1. 35

2. .

3. 1(

$. 1

%)&

Q. . 'll of the follo"in! are postulates of 'rrhenius theory of ioni;ation except

1. electrolytes ioni;e in "ater to prouce cations an anions

2. ioni;ation is re*ersi) le processes

3. electrical conucti*ity of a solution of an electrolyte epens on the extent to "hich the electrolyte ioni;e in the solution

$. stron! electrolyte ioni;e to a !reater extent in "ater

%&

Q. (. If >? moles of '!2Cr2Bare issol*e in "ater to prouce a saturate solution then sp "ill )e

1. 22

2. 23

3. $3

$. 3


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%c&

Q. . ' salt "as issol*e in "ater. It "as foun that ionic prouct is !reater than the solu)ility prouct. It means that the

1. solution is unsaturate

2. solution is saturate

3. solution is supersaturate

$. "e cannot preict the saturation or unsaturation of the solution for this ata

%c&

Q. 10. Enou!h lea chlorie #)CI2"as issol*e in "ater at 2o

to prouce a saturate solution. Concentration of #)28

in the solution "ill )e

a.

).

c.

.

%a&

Q. 11. Consier the follo"in! cell reaction

#) 8 2'!8 #)28 8 2'!


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If a cell is mae )ase on this equation then

1. lea "ill act as anoe an si l*er as cathoe

2. lea "ill act as cathoe an sil*er as anoe

3. sil*er "ill act as cathoe )ecause it has !reater reuction potential

$. lea "ill act as anoe )ecause it has lesser reuction potential

%a&

Q. 12. Consier the follo"in! spontaneous reaction

i28

8 Mn i 8 Mn28

If a *oltaic cell is mae )ase on this reaction then con*entional representation of the cell "ill )e

a. i , i28 ] Mn28 , Mn

). Mn , Mn28 ] i28 , i

c. Mn28

, i ] i , i28

. i , i ] Mn , Mn28

%)&

Q. 13. 0.0 molar


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%c&

Q. 1$. :uffer is a solution

1. "hose #< is constant

2. "hich resists chan!e in its #Aanciity prouce in )utter can )e ecrease )y ain! quinoline to the )utter?. This statements sho"s that

1. nothin! is impossi)le

2. quinoline is an inhi)itor

3. quinoline is a catalyst

$. quinoline is an acti*ator

%)&

Q. (. 'mmonia can )e prouce accorin! to the follo"in! reaction

2 8 3


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1. @e2B3an 'I2B3are catalysts "hile 2B is a promoter

2. @e2B3 is catalyst "hile 'G2B3 an 2B are promoters

3. 'I2B3an 2B are catalysts "hile 'I2B3is a promoter

$. @e2B3an 2B are catalysts "hile 'I2B3is a promoter

%)&

Q. . In specifie conitions the rate of consumption of 2B in the reaction

22B $B2 8 B2

is 0. mol 2BGL1.FL1. The rate of formation of B2is

1. 0.

2. $

3. 2

$. 1

%&

1st Year Chemistry Important Mcqs @or Exam 2013


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:iolo!y Complete Important Mcqs for Meical Entry Test #reparation

:iolo!y Complete Important Mcqs @or Meical Entry Test #reparation

Ecolo0y deals /ith

a5 )iotic .actors o. en6ironment

75 A7iotic .actors o. En6ironment

c5 En6ironmental relations

d5 )oth a87

Histolo0y is study o. l i6in0 or0anisms at 99999999999 le6el:

a5 Cell

75 %r0an

c5 Tissue

d5 Community

Study o. Geo0raphical #istri7ution o. animals is ;no/n as

a5 )io0eo0raphy

75


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c5 'arine )iolo0y

d5 %cean Ecolo0y

nsulin preparation comes under /hich 7ranch o. 7iolo0y

a5 Social )iolo0y

75 )iotechnolo0y

c5 Genetic En0ineerin0

d5 Parasitolo0y

=hat is the ri0ht distri7ution o. le6els o. study .rom smaller to lar0er

a5 Specie> community> population > Ecosystem

75 tissue> cell> or0an> system

c5 ndi6idual> Specie> population> community

d5 %r0anelle> tissue> or0an> System

Term ?accini@ation /as disco6ered 7y

a5 Ed/ard enner

75 Louis Pasteur

c5Emil Fischer

d5 Ro7ert 4hoshland

)iopesticides ha6e ad6anta0e o6er chemical pesticides 7ecause

a5 Pests can not de6elop resistance a0ainst them

75 They are cheaper

c5 $on Pollutant

d5 All o. a7o6e

Clonin0 surely produces or0anisms that ha6e ident ical

a5 0enotype

75 phenotype

c5 0enome

d5 All o. a7o6e

1: The mechanism 7y /hich or0anisms maintain the sta7ility o. their cellular en6ironment is ;no/n asB

a: Homeostasis

7: $ormal health

c: Structural adaption

d: %smore0ulation

2: =hen the concentration o. eternal medium is eual to the concentration o. internal medium o. cell is calledB

a: Hypertonic

7: Hypotonic

c: sotonic

d: Heterotonic

3: )rassica and rose plant 7elon0 to 0roup o. plantsB

a: Hydrophytes

7: 'esophytes

c: erophytes

d: Succulents


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&: Animals /hich are una7le to adDust their internal salt concentration accordin0 to eternal en6ironment isB

a: Anhydro7iosis

7: %smore0ulators

c: Thermore0ulatory

d: %smocon.ormers

(: =hich one o. the .ollo/in0 animal can sur6i6e /ithout drin;in0 /ater

a: 4an0aroo rat

7: Pi0

c: 4an0aroo

d: Camel

*: $itro0eneous /astes are produced as a result o.B

a: Photosynthesis

7: n0estion

c: Assimilation

d: #eamination

+: Fresh /ater proto@oans pumped out ecess /ater 7y a special structure calledB

a: %ral 0roo6e

7: Contractile 6acuole

c: Pellicle

d: ?acuole

,: The term 0lyco0enesis means> the con6ersion o.B

a: 0lucose to Glyco0en

7: Lactic acid to Glyco0en

c: Glyco0en to Glucose

d: Amino acid to Glyco0en

: =hich one o. the .ollo/in0 nitro0enous compound is much more solu7le in /ater

a: "ric acid

7: "rea

c: Ammonia

d: Creatine

1: The remo6al o. amino 0roup .rom amino acid is calledB

a: Transamination

7: #eamination

c: Translocation

d: Transposition

11: The amount o. /ater reuired .or the remo6al o. 2 0 o. ammonia isB

a: 2 ml

7: ( ml

c: 1 ml

d: 1 ml

12: n .lat/orms ecretory system consists o. a net /or; o. closed tu7ules /ith out internal openin0s are calledB

a: $ephridia

7: Protonephridia


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c: 'etanephridia

d: $ephrostome

13: Accordin0 to the remo6al o. nitro0enous /astes> reptiles and 7irds are the eamples o.B

a: "ricotelic

7: Ammonotelic

c: "reotelic

d: Ammoniotelic

1&: The .unctional unit o. human ;idney is calledB

a: $ephridia

7: Collectin0 tu7ule

c: $ephron

d: $ephrotome

1(: The end product o. haemo0lo7in is theB

a: Allontoin

7: )iliru7in

c: anthine

d: Creatinine

1*: All o. the .ollo/in0 are the plasma proteins synthesi@e 7y Li6er> ecept that o.B

a: Al7umin

7: Prothrom7in

c: Glyco0en

d: Fi7rino0en

1+: Li6er is a lar0e or0an> ma;in0 the 7ody /ei0ht up toB

a: 2 3

7: 3 *

c: 1 2

d: 3 (

1,: The term Glyco0enolysis means> the con6ersion o.B

a: Glucose into lactic acid

7: Glucose into Glyco0en

c: Glucose into alcohol

d: Glucose into amino acid

1: Li6er store t;e 6itamins A> #> E 8 4> /hich are the mainlyB

a: Fat solu7le

7: Cold /ater solu7le

c: Alcoholic solu7le

d: Hot /ater solu7le

2: As human ;idney has less than one percent o. total 7ody /ei0ht and /ith each cardiac cycle it recei6e the 7llod o. a7outB

a: (

7: 3

c: 2

d: 2(


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21: Creatinine is produced inB

a: Li6er

7: 'uscles

c: 4idney

d: )lood

22: All are related to urea cycle> ecept that o.B

a: Citruline

7: %rnithene

c: Ar0inine

d: Creatinine

23: "rea lea6es the ;idney throu0hB

a: "reter

7: "rinary 7ladder

c: "rethra

d: pel6is

2&: "rea is produced 7y a cyclic process in the li6er ;no/n asB

a: "rea or %rnithene cycle

7: "rea or Citruline cycle

c: "rea or Ar0inine cycle

d: )oth a 8 7

2(: n man the epulsion o. urine .rom the 7ody the urethra is ;no/n asB

a: "rination

7: Elimination

c: 'icturition

d: Filtration

2*: Each nephron has a mass o. 7lood capillaries /hich are partially enclosed 7y the 7lind endin0 re0ion o. the tu7ule is calledB

a: Glomerulus

7: )o/manIs capsule

c: Loop o. henle

d: ?asa recta

2+: The inner layer o. the )o/manIs capsule is made up o unJusual cells calledB

a: Endothelial cells

7: )aesment mem7rane cells

c: Ciliated cells

d: Podocytes

2,: the 7lood pressure in ;idneys is hi0her that in the other or0ans this hi0h pressure is maintained 7ecauseB

a: The a..erent arteriole has a lar0e d iameter and e..erent arteriole has a smaller diameter

7: %. the .oot li;e process o. Podocytes

c: )ecause o. the )o/manIs capsule

c: The e..erent arreriole has a lar0e diameter than the a..erent arteriole

2: 'arine mammal such as /hale has a 6ery thic; layer o. isulatin0 .at called 7lu77er Dust under the s;in> /hich one o. the is not related to

the adapti6e 6alue o. this .at

a: )ecause it is insolu7le in /ater> so does not a..ect the osmotic 7alance o. the cells


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7: As .at is an ener0y storin0 compound> so it is utili@ed 7y the animal /hen stora0e o. .ood

c: Fat has lo/ ener0y contents as compared to other ener0y storin0 compound such as 0lyco0en

d: Fat ha an insulatin0 .unction and ha6in0 lo/ heat conducti6ity

3: =hich part o. the $ephron maintains the normal pH o. human 7lood

a: )o/manIs capsule

7: Ascendin0 prtion o. henle loop

c: #escendin0 portion o. henle loop

d: Collectin0 duct

31: =hich one the .ollo/in0 properties o. /ater is the main contri7utory .actor ena7lin0 homeotherms to adapt> to a ran0e o. en6ironment

a: =ater has a hi0h heat o. 6apori@ation

7: =ater has hi0h sur.ace tension

c: =ater has maimum density at & Co

d: t has a lo/ 6iscocity

32: =hich o. the .ollo/in0 is a .unction o. the le6er

a: Re0ulation o. plasma 7icar7onate ions

7: Stora0e o. 6itamin C

c: Production o. plasma al7umin

d: Production 0ranulocytes

33: =hich o. the .ollo/in0 is an endothermic

a: Hummin0 7irds

7: )at

c: Fish

d: )irds

3&: Human maintains their hi0h 7ody temperature /ith in a narro/ ran0e o. a7outB

a: 3* 3, oC

7: 3( 3+ oC

c: 3+ 3, oC

d: 3+ 3 oC

3(: n human 7ein0 7ody temperature is re0ulated 7y a part o. 7rainB the

a: Thalamus

7: Hypothalamus

c: 'edulla o7lon0ata

d: Cere7ellum

3*: Process o. rea7sorption is the mo6ement o. materials .romB

a: Filtrate to Glomerulus

7: Filtrate to 7lood capillaries

c: Glomerulus to .iltrate

d: Pel6is to .iltrate

3+: =hich o. the .ollo/in0 chemicals displaces the set point o. the hypothalamus

a: Anti0en

7: Anti7odies

c: Anti7iotics

d: Pyro0en


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3,: The most common ;idney stone isB

a: Calcium stone

7: %alate stone

c: "ric acid stone

d: Car7onate stone

3: The nitro0enous ecretory compounds .ormed in EarthJ/orm are theB

a: "rea

7: Ammonia

c: )oth a 8 7

d: "ric acid

1: The matri o. the 7one is composed o.B

a: Calcium phosphate

7: Colla0en

c: Chitin

d: Calcium car7onate

2: Hydrostatic s;eleton is pressent inB

a: E:=orm 8 elly .ish

7: Coc;roach

c: Cray .ish

d: 'illipedes

3: The most ri0id connecti6e tissues are theB

a: Tendons

7: Li0aments

c: Cartila0e

d: )ones

&: All o. the .ollo/in0 are related to cranial 7ones> ecept that o.B

a: Parietal

7: %ccipital

c: ?omer

d: Frontal

(: The structure .ormed 7y the .usion o. anterior .i6e pel6ic 6erte7rae is theB

a: Ais

7: Sacrum

c: Atlas

d: Coccy

*: =hich one o. the .ollo/in0 posses sin0le occipital condyle

a: Fishes 8 Reptiles

7: )irds 8 'ammals

c: )irds 8 Amphi7ians

d: Reptiles 8 )irds

+: The anta0onistic arran0ement o. s;eletal muscles means the mo6ement o. musclesB

a: n the same direction

7: A0ainst each other


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c: /ith out .riction

d: =ith out contraction 8 relaation

,: =hich one deos not ta;e place durin0 repair o. 7one

a: Chondrocytes .ormation

7: Hematoma .ormation

c: Callus .ormation

d: )ony callus

: /hich one is not correct a7out the slidin0 .ilament model o. muscle contraction

a: Len0th o. A 7and is reduced

7: Thic; and thin .ilaments slide o6er each other

c: < K lines come lose to0ether

d: The K 7and shortens

1: The .undamental contractile unit o. a s;eletal muscle is calledB

a: K 7and

7: sarcolemma

c: Sarcomeres

d: H K @one

11: =hich one o. the .ollo/in0 acts as a shoc; a7sor7er to cushion the ti7ia and the .emur /here they come to0ether

a: Central disc

7: Li0ament

c: Cartila0e

d: Tendons

12: A muscle is a muscleB

a: )undle

7: Fi7er

c: Filament

d: Fi7ril

13: The ori0inal .unction> in the .irst 6erte7rates> o. the s;eleton /as to pro6ideB

a: Support .or locomotion

7: 'inerals

c: 7lood cells

d: protection .rom enemies

1&: =hich one o. the .ollo/in0 connects the 7one to 7one

a: Tendon

7: Cartila0e

c: #isc

d: li0ament

1(: The ori0inal .unction is still per.ormed today 7y 7ones o. theB

a: a/

7: Pel6is

c: S;ull and ri7 ca0e

d: Thi0h


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1*: =hich one o. the .ollo/in0 is li;ely to ha6e the stron0est le0 7ones

a: oc;ey

7: S/immer

c: Gol.er

d: =ei0ht li.ter

1+: The .undamental> repeatin0 unit o. a s;eletal myo.i7ril is theB

a: 'otor unit

7: 'yosin cross 7rid0e

c: Sarcomere

d: Sarcoplasmic reticulum

1,: Accordin0 to the no/Jesta7lished slidin0J .ilament model o. muscle contraction> the molecules that mo6e o shorten a muscle areB

a: Creatine phosphate

7: Colla0en

c: 'yosin

d: Actin

1: Cross 7rid0es> /hich connect the t/o molecules o. a .i7ril durin0 a muscle contraction> are made o.B

a: Troponin

7: Tropomyosin

c: Actin

d: 'yosin

2: An oy0en de7t de6elops durin0B

a: An aero7ic /or;

7: Aero7ic /or;

c: Sarcoplasmic release

d: Tetanus

21: The ion that must 7e present .or 7indin0 o. the cross 7rid0es isB

a: sodium ion

7: Potassium ion

c: Calcium ion

d: 'a0nesium ion

22: The allJorJnon phenomenon o. muscle contraction re.ers to a maimum contraction or no contraction o. aB

a: 'uscle

7: 'uscle .i7er

c: 'uscle 7undle

d: 'uscle .i7ril

23: An aero7ic /or; 7ecomes continue pain.ul 7ecause o. an accumulation o.B

a: Lactic acid

7: Car7on dioide

c: Acetic acid

d: Calcium ions

2&: An allJout sprint cannot continue .or more than a7out &( seconds 7ecause the musclesB

a: Accumulate acetylcholine on their plasma mem7ranes

7: Accumulate too much Creatine phosphate


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c: Run out o. 0lyco0en

d: Run out o. oy0en

2(: The depression used .or articulation o. .emur is calledB

a: schium

7: Pu7is

c: lium

d: Aceta7ulum

2*: The mammals used on the hoo.ed tip o. the toes are calledB

a: "n0uli0rades

7: Planti0rades

c: #i0iti0rades

d: Saltatorials

2+: The most prehistoric etinct 7ipedal 6erte7rates /ere theB

a: Lo7e .inned .ishes

7: Amphi7ians

c: Reptiles

d: 'ammals

2,: ;eel the modi.ied 7one o. sternum is present inB

a: #ipnoi

7: Reptiles

c: )irds

d: 'ammals

2: The streamJline 7ody structure is present inB

a: Reptiles

7: Fishes

c: 'ammals

d: Amphi7ians

3: Star .ish mo6es /ith the help o.B

a: Caudal .in

7: 'yonemes

c: Tu7e .eet

d: Foot

31: =hich o. the .ollo/in0 animal sho/ accordion li;e locomotion

a: elly .ish

7: EarthJ/orm

c: TapeJ/orm

d: Amoe7a

32: n man the contraction o. /hich o. the .ollo/in0 muscles ma;e the arm strai0ht

a: Triceps )rachii

7: )rachialis

c: )iceps )rachii

d: )rachioradialis


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33: durin0 contraction o. muscles the calcium ions released .romB

a: Sarcomeres

7: T K tu7ules

c: )one marro/

d: Sarcoplasmic reticulum

3&: A 0rassJhopper mo6es .rom place to place /hen it musclesB

a: Pull it 7ones

7: Push it 7ones

c: Push it eternal plates

d: Pull its eternal plates

3(: An earthJ/orm mo6es .rom place to placeB

a: Peristalic /a6es o. contracions o. circular and lon0itudinal muscles

7: To and .ro mo6ements o. many tiny parapodia

c: 'any small paseudopodia called Setae

d: Rollin0 mo6ements caused 7y statocysts

3*: Tiny animals> such as the lar6ae o. Cnidarians> mo6e .rom place to place chie.ly 7yB

a: Cytoplasmic streamin0

7: The 7eatin0 mo6ement o. cilia

c: Contraction o. muscle cells

d: Amoe7oid mo6ement

3+: The toJ.roJmo6ements o. cilia and .la0ella in eu0lena 8 paramecium are caused 7yB

a: Slidin0 microtu7ules

7: Contractin0 micro.ilaments

c: Elon0atin0 cell mem7ranes

d: Chan0es in tur0or pressure

3,: =hich o. the .ollo/in0 is mismatched

a: Sli0htly mo6ea7le DointJ6erte7rate

7: Hin0e DointJHip

c: Syno6ial DointJel7o/

d: mmo6a7le DointJSutures in cranium

3: =hich o. these is direct source o. ener0y

a: Adenosine Triphosphate

7: Lactic acid

c: Creatine phosphate

d: )oth a 8 7

&: =hen muscles contractB

a: Sarcomeres increases in si@e

7: 'yosin slides past actin

c: The HJ@oneM disappears

d: Calcium is ta;en up calcium stora0e sites

&1: The chest ca0e o. man is supported 7y num7er o. ri7sB

a: T/enty .our only

7: T/el6e pairs


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c: Ten pairs

d: )oth a 8 7

&2: durin0 7one .racture the mass o. clotted 7lood is calledB

a: Remodelin0

7: Hematoma

c: reduction

d: )ony callus

1: ?iral 0enes are made o.

a: R$A only

7: #$A only

c: Either #$A or R$A

d: Either protein or nucleic acid

2: A 6irion is a

a: ?irus

7: ?iral ri7osome

c: ?iral lysosomes

d: ?iral 0ene

3: An isolated 6irus is not considered li6in0 since it

a: Separates into t/ inerts part

7: Cannot meta7oli@e

c: Rapidly loses its 0enome

d: s coated /ith airJti0ht > chemically inert sheild

&: 'ost R$A 6iruses carry a 0ene .or an en@yme that uses 6iral R$A as template in the synthesis o. more 6iral R$A this en@yme is

a: Re6erse transcriptase

7: R$A polymerase

c: ?iral nuclease

d: R$A replicase

(: The en@ymes in6ol6ed in 6iral replication are synthesi@ed

a: %n the 6iral ri7osome

7: )y the host cell

c: %n the interior sur.ace o. the 6iral mem7rane

d: %n the interior sur.ace o. the 6iral coat

*: 'uch o. the research on 0ene epression has 7een done /ith E:coli> /hich inhi7its the human intestine:This or0anism is a

a: Plasmid

7: ?irus

c: )acterium

d: Proto@oan

+: n 0eneral 7acterial 0enes are re0ulated at the time o.

a: Transcription

7: PostJtranscription

c: Translation

d: CoDu0ation


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,: =hen #$A is echan0ed 6ia eytoplasmic 7rid0es 7et/een t/o 7acteria the process is called

a: Transduction

7: ConDu0ation

c: Trans.ormation

d: Recom7ination

: =hen a 7acteriopha0e in its lytic phase carries some o. the 7acteriumIs partially di0ested chromosome /ith it to another host cell the

process is called

a: ConDu0ation

7: Trans.ormation

c: Transduction

d: Restricted transduction

1: A 7acteriopha0e /ith a lyso0enic cycle must ha6e 0enes that are

a: 'ade o. R$A

7: 'ade o. dou7leJstranded #$A

c: 'ade o. sin0leJstranded R$A or #$A

d: =ith in a circular nucleic acid molecule

11: /hich o. the .ollo/in0 .un0us is used to 0i6e the .la6our > aroma and Characteristics colour to some cheese

a: -east

7: Er0ot .un0i

c: Asper0illus

d: Penicillium

12: Accordin0 to mode respiration /hich one o. the .ollo/in0 0roup o. 7acteria can 0ro/ either in the presence or a7sence o. oy0en

a: Facultati6e7acteria N E:coli 5

7: 'icroaeerophilic N campylo7acter 5

c: Pseudomonas

d:Spirochete

13: /hich one is true .or PoJ6iruses

a: R$AJen6eloped

7: #$AJnon en6eloped

c: #$AJen6eloped

d: #$AJna;ed 6irion

1&: A disease 6irus in /hich ner6es are dama0ed is the

a: -ello/ .e6er

7: Polio

c: 'easles

d: erophthalmia

1(: n some 7acteria /hen di6ision ocurrs in random plane it /ill produce an Arran0ement called

a: Streptococcus

7: sarcina

c: #iplococcus

d: Staphylococuus

1*: Gram positi6e 7acteria are usually

a: Cocci


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7: )acilli

c: Stained pin;

d: Spirochete

1+: A 6iral disease in /hich 7rain o. the host is a..ected is the

a: Sleepin0 sic;ness

7: Ra7ies

c: Pella0ra

d: Typhoid

1,: 'umps and measles 6iruses 7elon0 to 0roup paramyoJ6iruses /hich are the

a: R$A en6eloped 6iruses

7: #$A na;ed 6iruses

c: R$A nonJen6eloped

d: #$A en6eloped 6iruses

1: There are a7out ;no/n species o. 7acteria that causes the diseases in man

a: 2(

7: 1(

c: 2

d: 3

2: 'orpholo0ically the to7acco mosaic 6irus is the

a: Round shape

7: Tadpole li;e

c: Cu7ical shape

d: Rod shape

21: The .la6our>all o. the .ollo/in0 is due to 7acterial acti6ity> ecept that o.

a: )utter mil;

7: -o0urt

c:ce crem

d: Cheese

22: A scientist /ho esta7lished principles o. immunity in Anthra 8R7iesM /as the

a: Leeu/enhoe;

7:Pasteur

c:4och

d:enner

23: The poison> produced 7y 7acteria durin0 in.ection in host is called

a: Toins

7:Antitoins

c: Tooids

d:A..lotoins

2&: All o. the .ollo/in0 are anti7iotics> ecept that o.

a: Penicillin

7: Streptomycin

c: Ri7o.la6in

d: Terramycin


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2(: )acteria ran0es in si@e> /hereas> the staphylococcus8streptococcus are in diameter

a: :+( to 1:2( m

7: 1:1 to 1:( m

c: 2: to *: m

d: :+( to 1:+( m

2*: =hich one is true .or periplasmic space >in di..erent 0roups o. 7acteria

a: Present in all 0ram Jne0ati6e 7acteria

7: Present in all 0ram positi6e 7acteraia

c: Present in .e/ 0ram ne0ati6e 7acteria

d: Present in all 0ram positi6e8.e/ 0ram ne0ati6e 7acteria

2+: The amount o. lipid in outer noundry o. 0tam positi6e 7acteria is a7out

a: 1J&

7: 11J12

c:,J11

d: 2J*

2,> =hich one o. the .ollo/in0 anti7iotics 8related compounds cause permanent discoloration o. teeth in youn0 children

a: Tetracyclin

7: Terramycin

c: Streptomycin

d: Penicillin

2> Anti7iotics are synthesi@ed 7y certain or0anisms such as

a: Penicillium

7: Actinomycetes

c: )oth a7

d: %scilletoria

3: Ecolo0ical role o. .un0i as decomposers is parallled only 7y

a: ?irus

7: )acteria

c: #etrius

d:$ematodes

31: Are 6ery 0ood 7ioJindicator o. air uality as they are 6ery sensiti6e to pol lution

a: )acteria

7: 'ycorrhi@ae

c: Lichens

d: =ater 7looms

32: nduction is a process in /hich a 6iral #$A

a: Enters into 7acterial cell and attached /ith 7acterial #$A

7:#etached .rom 7acterial #$A

c: #estroy the 7acterial #$A

d: 'ultiply /ith 7acterial #$A

1: The idea o. inheritance o. acuired character /as proposed 7yB

a: Linnaeus

7: Lamarc;


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c: #ar/in

d: =allace

2: From South America #ar/in collected num7er o. types o. FinchesB

a: 2

7: 11

c: 1(

d: 13

3: =hich one o. the .ollo/in0 mammals li6e only in America

a: Armadillos

7: Elephant

c: %possum

d: Echidna

&: =hich one o. the .ollo/in0 sland is present near the coastline o. South America

a: Cape 6erd

7: Finland

c: Galapa0os

d: celand

(: The oldest ;no/n .ossils are o.B

a: Pisces

7: Pro;aryotes

c: Proto@oans

d: Al0ae

*: Archaeo7acteria can tolerate temperature up toB

a: 1o C

7: 1( oC

c: 11 oC

d: 12 oC

+: 'ost .ossils are .ound inB

a: Sedimentary roc;s

7: n0eous roc;

c: )lac; soil

d: La6a .lo/a

,: Charles #ar/inIs 7oo;> %n the ori0in o. species 7y 'eans o. $atural Selection> /as .irst pu7lished inB

a: 1++

7: 1,31

c: 1,(

d: 1(

: The primary mission o. the 6oya0e o. H:':S:7ea0leM N1,31 1,3*5 /as toB

a: Carry arms to the ne/ /orld

7: Chart the S:American coastline

c: Find out ho/ many species there /ere in the /orld

d: #ispro6e Lamarc;Is theory o. inheritance

1: The /in0 o. 7ird and the .orele0s o. a horse areB


88/118

a: ?esti0ial structures

7: Analo0ous structures

c: Phylo0enetic structures

d: Homolo0ous structures

11: The stru00le .or eistence is a conseuence o.B

a: Each or0anism lea6in0 more o..sprin0 than needed to replace it sel.

7: The ine6ita7le di..iculty o. copin0 /ith climatic conditions

c: Territories and dominance hierarchies

d: nnate competiti6e tendencies

12: The idea o. common descent /as .irst su00ested to #ar/in 7y his o7ser6ations onB

a: Comparati6e em7ryolo0y

7: )lood 0roups o. 7irds

c: Geo0raphical distri7ution o. species

d: Human pedi0rees

13: Fossil record sho/s that the earliest ;no/n 6erte7rate .ossils /ere o.B

a: 'ammals

7: Fishes

c: Amphi7ians

d: Reptiles

1&: The structures /hich ha6e common ori0in 7ut di..erent .unction isB

a: ?esti0ial structure

7: Analo0ous structure

c: Adapti6e structure

d: Homolo0ous structure

1(: n terrestrial 6erte7rates> the 0ills are modi.ied to .ormB

a: Lun0s

7: Eustachian tu7e

c: Ear muscles

d: Laryn

1*: A respiratory protein .ound in all aero7ic species is theB

a: CytochromesJc

7: CytochromesJ7

c: CytochromesJa

d: CytochromesJa3

1+: /hich one o. the .ollo/in0 cannot chan0e allelic .reuency

a: 'i0ration

7: Genetic dri.t

c: Random matin0

d: Selectiion

1,: The /in0s o. a 7ird and the /in0s o. an insect areB

a: Analo0ous structures

7: Phylo0enetic structures


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c: Homolo0ous structures

d: ?esti0ial structures

1: The 7est test o. the relatedness o. t/o species is in the similarity o. theirB

a: Anatomy

7: Courtship 7eha6iour

c: #e6elopment

d: #$A 8 Protein

2: The unit o. e6olution is no/ ;no/n to 7e theB

a: ndi6idual

7: Population

c: Family

d: Species

21: The total collection o. 0enes> at any one time> in a unit o. e6olution is called theB

a: Genotype

7: Phenotype

c: Gene pool

d: 'ultipleJallelic 0roup

22: A potential dan0er to a population that has 7een 0reatly reduced in num7er is theB

a: Loss o. 0enetic 6aria7ility

7: Tendency to/ards asserti6e matin0

c: Reduced 0ene .lo/

d: HardyJ=ein7er0 diseuli7rium

23: The human 7lood 0roups A> )> A)> and % are an eample o. aB

a: #imorphism

7: 'utation

c: Gradeint o. diploidy

d: Allelomorphism

2&: All alleles ori0inate .romB

a: Crossin0 o6er

7: 'utations

c: Gene .lo/

d: $onJdisDunction

2(: A 7ene.icial allele increases more rapidly in .reuency> i. it isB

a: #ominant

7: Recessi6e

c: Recently mutated

d: Rare

2*: )iolo0ist /ho study the seuence o. or0anisms in the .ossil record areB

a: Taonomists

7: Phycolo0ists

c: Paleo7iolo0ists

d: 'ycolo0ists


90/118

2+: The richest source o. .ossils isB

a: 0neous roc;

7: Granite

c: )asalt

d: Sedimentary roc;

2,: Ho/ many possi7le phenotypes are there .or the A)%M 7lood 0roups

a: &

7: *

c: ,

d: 1*

2: The 0enotypic epression seen in a person o. 7lood 0roup A)M is calledB

a: #ominantJrecessi6e

7: ncomplete dominance

c: CoJdominance

d: %6erJdominance

3: The pel6is and the le0 7ones o. a sna;e areB

a: Homolo0ous structures

7: ?esti0ial structures

c: Adapti6e structures

d: Analo0ous structures

31: A child /ith 7loodJ0roup 0enotype A O ) is 7orn o. a /oman /ith 0enotype ) O ) > the .ather could not 7e a man o. 0enotypeB

a: A O )

7: A O A

c: ) O )

d: A O i

32: The locus o. 0ene that controls the A%)M 7lood type is present on chromosome num7erB

a: 11

7: 21

c: +

d:

33: The pattern o. se determination .ound in protenor hu0 isB

a: %

7: =<


91/118

c: is .emale

d: - male

3*: =hich one is not correct .or recessi6e seJlin;ed inheritance

a: Gene .or eye colour is present on M se chromosomes

7: - chromosome is inert

c: Female can 7e homo@y0ous or hetero@y0ous

d: Se K lin;ed traits are more common in .emales as compared to males

3+: The 0enes .or 7lue %psin protein are present on autosomal chromosomes num7erB

a: +

7: 11

c:

d: 21

3,: A /oman recei6es her M M chromosomes .romB

a: Her mother only

7: )oth her mother 8 her .ather

c: Her .ather only

d: EtraJnuclear #$A in her motherIs e00

3: =hen a mutation is limited to the su7stitution o. one nucleotide pair .or another> it is called aB

a: Point mutation

7: Transiocation

c: )ase in6ersion

d: Su0arJphosphate deletion

&: The creation o. mutations is calledB

a: E6olution

7: Radiation

c: 'uta0enesis

d: Saltatory chan0es

&1: The .ather o. a 0irl is hemophilic 7ut mother is normal:she may 7eB

a: hemophilic

7: Carrier

c: $ormal

d: $one o. these

&2: Genes not located /ithin the nucleus are almost al/ays located in theB

a: Cytosol

7: Cell mem7rane

c: Cytos;eleton

d: %r0anelles

;ey

1:7

2:d

3:a

&:c

(:7


92/118

*:d

+:a

,:c

:7

1:d

11:a

12:c

13:7

1&:d

1(:7

1*:a

1+:c

1,:a

1:d

2:7

21:c

22:a

23:d

2&:7

2(:a

2*:c

2+:d

2,:a

2:c

3:7

31:7

32:d

33:a

3&:c

3(:7

3*:d

3+:a

3,:7

3:a

&:c

&1:7

&2:d

1: /hich o. the .ollo/in0 plants is rich in atropine dru0

a: datura

7: red pepper

c: petunia

d: nicotiana to7acum


93/118

2: ho/ many car7on atoms are there in a molecule o. Ri7ulose 7iphospahte

a: three

7: .our

c: .i6e

d: si

3: /hich one o. the .ollo/in0 is an ornamental plant

a: physalis

7: melan0ena

c: atropa

d: petunia

&: plant donot store car7ohydrates as 0lucose 7ecause it is

a: attracts insect her7i6ores

7: dissol6es in /ater there7y alterin0 the osmotic 7alance

c: is an unsta7le molecule

d: /ould replace ri7ose in #$A replication

(: /hich o. the .ollo/in0 or0anisms are in6oled in the spreadin0 o. cholera and hepatitis

a: house .ly

7: mosuito

c: tse tse

d: locust

*: /hich one is not true .or 0rade radiate

a: radially symmetry

7: diplo7lastic

c: coelomate

d: 7ody /ith sin0le openin0

+: /hich one o. the .ollo/in0 round /orm is cosmopolitan

a: hoo; /orm

7: pin /orm

c: thread /orm

d: .illaria

,: taenia is an endoparasite o. human cattle and pi0 that completes its li.e cycle in t/o hosts the intermediate host is the

a: snail

7:sheep 8 man

c: sheep

d: pi0 8 cattle

: /hich one o. the .ollo/in0 0roups o. animals are acoclomste

a: nematode

7: .lat /orms

c: cnidarians

d: aschelminthes

1: the 0enus ra7ditis contains entero7ius 6ermicularisM /hich is commonly ;no/n as

a: pin /orm

7: thread /orm

c: hoo; /orm


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d: round /orm

11: coelom is ca6ity present 7O/ 7ody /all 8 alimentry canal and is lined 7y

a: ectoderm

7: endoderm

c: mesoderm

d: choanoderm

12: pro0lottids are related to /hich o. the .pllo/in0 animals

a: .asiola

7: schistosoma

c: du0esia

d: taenia

13: protandrous mode o. seual is .ound in

a: aurelia

7: spon0es

c: hydra

d: o7elia

1&: n /hich o. the .ollo/in0 .lat /orms the di0esti6e system is a7sent

a: tape /orms

7: li6er .lu;e

c: hydra

d: 7lood .lu;e

1(: the name cnidaria has 7een 0i6en to this 0roup o. animals due to the presence o. special cells called

a: nematocysts

7: cnidocytes

c: pinachocytes

d: choanocytes

1*: in /hich 0roup o. animal phyla alternation o. 0eneration is present

a: coelenterate

7: nematodes

c: aschelminthes

d: para@oa

1+: pseudocoelom o. round /orms consists o. a num7er o. 6acuolated cells .illed /ith a protein rich .luid that de6olpes hi0h

a: osmotic pressure

7: partial pressure

c: hydrostatic pressure

d: di..usion pressure

1,: many colonial coelenterates such as CoralsM produce a hard eos;eleton composed o.

a: sodium car7onate

7: calcium car7onate

c: calcium phosphate

d: silicon dioide

1: in .lat /orms the ecretory system consists o. 7ranchin0 tu7es endin0 in 7ul7 li;e cells called

a: 0lomerulus

7: nephrostome

c: .lame cells


95/118

d: nephridia

2: in multicellular or0anisms the inte0umentary and ner6ous system de6elop .rom

a: mesoderm

7: archenteron

c: endoderm

d: ectoderm

21: in spon0es the inner 7ody layer is made o. special .la0ellated collar cells called

a: pinachocytes

7: choanocytes

c: 0elatinous mesenchyma

d: amoe7oid cells

22: acyclostoma dueodenela a parasite o. human small intestine is commonly ;no/n as

a: hoo; /orm

7: pin /orm

c: thread /orm

d: 0uinae /orm

23: /hich one o. the .ollo/in0 parasitic .lat /orm li6es in the 7ile duct o. its host

a: taenia /orm

7: du0esia

c: .asiola hepatica

d: tape /orm

2&: in asymmetrical para@oa the s;eleton is in the .orm o. 6ariously shaped needle li;e structure called

a: calcareous shell

7: spicules

c: siliceous shell

d: ;eratini@ed shell

2(: in hydra alternation o. 0eneration is a7sent and it eist only in

a: medusae .orm

7: cono@oid .orm

c: 0astro@oid .orm

d: polyps .orm

2*: the stony mass o. li6in0 coelenterate is called

a: corals

7: coral lee.

c: polyps

d: medrepora

2+: the 7ar; /hich o. the .ollo/in0 plants are used in tannin0 industry

a: 7auhinia 6eri0ata

7: tamarindus indica

c: cassia senna

d: 7oth a 8 7

1: in ireland people are completely dependent on

a: potatoes

7:tomatoes


96/118

c: to7acco

d: red pepper

2: Capsium anum is the scienti.ic name o.

a: datura

7: to7acco

c:red pepper

d: 7lac; pepper

3: /hich one o. the .ollo/in0 is the .a6ourite home 0arden 6e0eta7le that /as once 7elie6ed to 7e poisoned

a: physalis

7: lipersicum esculentum

c: soalanum meelan0ena

d> atropa 7elladona

&: photosynthetic autotrophs 0et their ener0y .rom

a: heat

7: inor0anic molecules

c: or0anic molecules

d: li0ht

(: in 13 6an neil hypothesised that oy0en atoms in the oy0en 0as released 7y plants come .rom

a:car7on dioide

7: /ater

c: 0lucose

d: chlorophyll

*: in plant cell :the dar; reactions o. photosyntheses ta;es place in

a: stroma

7: thyla;oids

c:0ranum

d: lamellae

+: /hich o. the .ollo/in0 colurs o. li0ht /or; 7est .or photosynthesis

a: 0reen87lue

7: red0reen

c: 7lue8red

d: 6iolet8oraan0e

,: a description o. /a6elen0th a7sor7ed 7y a pi0ment is called its

a: action apectrum

7: anteena cells

c: reaction center

d: a7sorption spectrum

: production o. $A#PH in a chloroplast ta;es place durin0

a: dar; reaction

7: nonJcyclic photophosphyrlation

c: cyclic photophosphyrlation

d: chemiosis


97/118

1: /hich o. thr .ollo/in0 plant lea6es are used .or curin0 o. rin0 /orm s;in disease

a: cassia alata

7: cassia .istula

c: 7auhinia 6e0eteria

dd: tamarindus indica

11: /hich one o. the .ollo/in0 process releases a car7on dioide molecule

a: 0lycolysis

7: lactic acid .ermentation

c: alcoholic .ermentation

d: hydrolysis o. 0lycoen

12: /hen yeast is poducin0 /ine> /hich o. the .ollo/in0 is not .ormed

a: pyru6ic acid

7: acetyl co en@ymeJA

c: ethanol

d: car7on dioide

13: in the con6ersion o. pyru6ic acid to acetyl co een@yme JA> pyru6ic acid is

a: oidised

7: isomeri@ed

c: 7ro;en into one car7on .ra0ment

d: reduced

1&: ho/ many car7on atomsare in an oolacetate molecule> ehich Doins /ith an acetyl 0roup durin0 step J1 in ;re7s cycle

a: 2

7:3

c:&

d:*

1(: in ETC >the .inal acceptor o. electron is

a: cytochrome J7

7: cytochrome a3

c: oy0en

1*: the atom /ithin each cytochrome molecule that actually accepts and releases electrons is

a: car7on

7: iron

c: @in;

d: oy0en

1+: ho/ many car7on atoms are in citric acid molecule

a: .our

7: si

c: three

d: .i6e

1,: in aero7ic cellular respiration most o. the ATP is synthesi@ed durin0

a: electron transport chain

7: 0lycolysis

c: citric acid cycle

d: oidation o. pyru6ate


98/118

1: in eu;aryotic cell the ;re7s citric acid cycle and terminal electron transport ta;e place

a: /ith in the nucleus

7: on rou0h ER

c: in the cytoplasm

d: /ith in the mitochondria

2: the inner mem7rane o. mitochondria is 6ery selecti6e a7out /hat it normally allo/s to lea6e the or0anelle:one molecule that re0ularly

passes out o. a mitochondria is

a: citric acid

7: ATP

c: pyru6ic acid

d: 0lucose

21: the .unction o. the mitochondrial cristac is to

a: pre6ent escape %2 0as

7: store coJen@ymeJA

c: increase the sur.ace area o. the inner mem7rane

d: increase the a6ali7ility o. phospholipids

22: a source o. protons .or the protons .or the proton 0radient /ith in chloroplast is

a: /ater

7: chlorophyll

c: CH2%

d: phospholipids /ithin thyla;oids mem7ranes

23: the molecule in the Cal6inJ)enson cycle that com7ines /ith car7on dioide is

a: 0lyceraldehyde phosphate

7: ri7ulose 7iphosphate

c: phosphoenolpyru6ate

d: 1> 3 7iphospho0lycerate

2&: ho/ many car7on atoms are there in a molecule o. 0lyceraldehyde phosphate

a: .our

7: .i6e

c: three

d: si

2(: the source o. hydro0en atom .or the synthesis o. 0lucose is

a: H2%

7: FA#H2

c: nNCH2%5

d: $A#PH

2*: an edi7le .ruit> the hus; tomato o7tained .rom the plant .amily the

a: poaceae

7: solanaceae

c: ceasalpiniaceae

d: cassia .amily

:iolo!y Complete Important Mcqs @or Meical Entry Test #reparation


99/118

#hysics Complete Mcqs for Meical Entry Test #reparation

#hysics Complete Mcqs @or Meical Entry Test #reparation

Physics 'cs

These mcs are prepared especially .or 'edical entry test:

1JThe study o. physics deals /ith

aJla/s o. motion

7Jthe structure o. space and time

cJ.orce present in nature

dJall o. a7o6e

2JThe science o. physics 7ased on

aJhypothesis

7Jeperiments

cJonly de.initions

dJ.undamental uantities

3JPhysicists started 7elie6in0 that e6ery thin0 a7out physics has 7een disco6ered 7y the end o.

aJ2th century

7J1th

cJ1(th

dJnone

&JThe 7asic uantity amon0 the .ollo/in0 is

aJtorue

7J.orce

cJmass

dJ6elocity

(J#eri6ed uantity amon0 .ollo/in0 is

aJtime

7Jarea

cJlen0th

dJmass
http://educational.pk/2013/06/physics-complete-mcqs-for-medical-entry-test-preparation/http://educational.pk/2013/06/physics-complete-mcqs-for-medical-entry-test-preparation/


100/118

*JSupplementry units are

aJradian and ;0

7Jsteradians and time

cJmole and radian

dJradian and steradians

+JThe num7er o. si0ni.icant .i0ures in ,:,Q1* ;0 is

aJ1

7J(

cJ*

dJ3

,JThe num7er o. si0ni.icant .i0ures in :, is

aJ2

7J(

cJ3

dJ&

J. len0th is :233m and /idth is :1+,> the most accurate area epressed space o. si0ni.icant .i0ures is

aJ:&1m2

7J:&1(m2

cJ:&1+&+m2

dJnone

1JSi0ni.icant .i0ures in :(&* is

aJ3

7J&

cJ(

dJ1

11JThe dimensions 'L2TJ2 7elon0s to

aJpressure

7Jener0y

cJmomentum

dJpo/er

12JThe dimensions o. mc2 are

aJ 'LTJ1

)J'LTJ2

CJ'L2TJ1

#J'L2TJ2

1J the unit o. ener0y is

aJ/att

7J;illo/att hour

cJne/ton

dJpoise

2Jthe dimensions o. 6olume o. liuid .lo/in0 per second is

aJL3


101/118

7JL3TJ1

cJL3T

dJ'L3TJ1

3Jpre.i o. 11, is /ritten sym7olically as

aJA

7J)

cJE

dJP

&Jne/ton calculated that 6elocity o. the sound in air at S:T:P eual to

aJ2,mOs

7J2(mOs

cJ3mOs

dJ322mOs

(Jthe speed o. sound in steel is 0reater than it is in air 7ecause steel is

aJmore elastic than air

7Jless elastic than air

cJmore dense than air

dJless dense than air

*Jin inter.erence there is redistri7ution o.

aJ.reuency

7Jamplitude

cJphase

dJener0y

+Jthe maimum num o. possi7le inter.erence maima .or slit separation eual to t/ice the /a6elen0th in youn0s dou7le slit eperiment is

aJin.inite

7Jthree

cJ.i6e

dJ@ero

,J/hen unpolari@ed 7eam o. li0ht is incident on a 0lass sla7>the re.lected 7eam is .ound to 7e completely plane polari@ed:/hat is the an0le

7et/een the re.lected and transmitted 7eam

aJ

7J1,

cJ&(

dJ3

Jthe source and o7ser6er are mo6in0 to/ards each other /itha speed eual to 6O2 /here 6 is the speed o. sound:the source is emittin0

sound o. .reuency n > the .reuency heard 7y the listener /ill 7e

aJ@ero

7Jn

cJnO3

dJ3n

1J in dou7le slit inter.erence pattern> decreasin0 the distance d 7et/een the slits causes the /idth o. the .rin0es to

aJincrease

7Jdecrease


102/118

cJremains the same

dJincrease then decrease

11Ja di..raction 0ratin0 has (lines per mm its slit spacin0 /ill 7e

aJ(Q13mm

7J(Q1J3mm

cJ2Q13mm

dJ2Q1J3mm

12Jheat cannot 7e itsel. .lo/ .rom a 7ody at lo/er temperature to a 7ody at hi0her at hi0her temperature>is a statement as a conseuence o.

aJ conser6ation o. mass

7Jconser6ation o. momentum

cJ.irst la/ o. thermodynamics

cJconser6ation o. momentum

dJsecond laa/ o. thermodynamics

13Jthe translational ;inetic ener0y o. 0as molecules at atemperature T 0as is

aJ3O2 RT

7JO2 RT

cJ1O3 RT

dJ(O2 RT

1&J/hat is the most important .uction o. telescope

aJma0ni.ication

7Jresolution

cJli0ht collection

dJnone

1(Jconsider telecommunication throu0h optical .i7re : /hich statement is not true

aJoptical .i7res can 7e o. 0raded re.racti6e inde

7Joptical .i7ers ha6e eremely lo/ transmission loss

cJoptical .i7ers are su7Dected to electroma0netic inter.erence .rom outside

dJoptical .i7ers may ha6e homo0enous core /ith a suita7le claddin0

1*Jma0n.ication at least distance o. distinct 6ision o. a simple microscope ha6in0 its .ocal len0th (cm is

aJ &

7J(

cJ*

dJ+

1+Jresolution in a microscope is primirily determined 7y /hich lens

aJocular

7JproDector

cJo7Decti6e

dJcondenser

1,J/hen the len0th o. microscope tu7e increases its ma0ni.yin0 po/er

aJ increases

7J decreases

cJ doesnt chan0e

dJ may decrease and increase


103/118

1Ja man in an ele6ator ascendin0 /ith acceleration /ill conclude that /ei0ht has

aJ decreased

7Jincreases

cJ reduced to @ero

dJ remained constant

2J the rays /hich remains un de.lected in a ma0netic .ield is

aJ alpha rays

7J 7eta rays

cJ0amma rays

dJpositi6e rays

21Jan electron is roDected in the direction o. m0netic .ield /ith a certain 6elocity: the 6elocity o. electron /ill

aJincrease

7Jdecrease

cJremains same

dJ 7ecomes @ero

22JCR% can display the 0raph o. .unction /hich rapidly 6ary /ith

aJ6olta0e

7J 6elocity

cJtime

dJ distance

23Jt/o electron 7eams are tra6ellin0 parallel to each other :they

aJattract each other

7J repel each other

cJdo the e..ect each other

dJ/ill turn perpendicular to each other

2&Jthe inputs o. 0ate are 1 and and output is : the 0ate may 7e

aJ A$# 0ate

7J $%R 0ate

cJ$%R 0ate

dJ all o. them

2(J /hich o. the .ollo/in0 0ate is a uni6ersal 0ate

aJ %R 0ate

)J A$# 0ate

cJ $%T 0ate

dJ $A$# 0ate

2*J the nucleus Cd11(&, a.ter t/o successi6e )ETA decay /ill 0i6e

aJ Sn 11((

7J Sn 113(

cJ n11&&

dJ Pd11&&*

2+Jthe re6erse process o. photoelectric e..ect is

aJ compton e..ect

7J annihilation o. matter


104/118

cJ ray production

dJ 0amma emission

2,J di..raction o. Jrays 7y crystals sho/ that

aJ Jrays are Dust li;e 6isi7le li0ht

7J Jrays are electroma0netic /a6es

cJ Jrays ha6e 6ery short /a6elen0th

dJ the intensity o. Jrays is hi0h

2J the .reuency o. ultrasonic /a6es are

aJ in audi7le ran0e

7J 0reater than 2 ;H@

cJ lo/er than 2;H@

dJ 0reater than 2 Hert@

3J shunt resistance is called

aJ lo/ resistance

7J hi0h resistance

cJ 7ypass resistance

dJ speci.ic resistance

31J one coloum7 per second is eual to

aJ one 6olt

7J one ampere

cJ one /alt

dJ one ohm

32J ohm is de.ined an

aJ ?CJ1

7J ?AJ1

cJ C?J1

dJ A?J1

33J Jray tu7e electrons are accelerated 7y applyin0 a

aJ hi0h current 7et/een anode and cathode

7J hi0h 6olta0e 7et/een anode and cathode

cJ hi0h stoppin0 potential 7et/een anode and cathode

dJ hi0h po/er 7et/een anode and cathode

3&J in medical science /hich radiations are uses to locate .ractures or crac;es in 7ones or teeth

aJ in.raJred radiations

7J 0amma radiations

cJ Jrays

dJ ultra 6iolet radiaions

3(Jthe minimum /a6elen0th o. JRA-S produced i. 1;6p potential di..erence is applied across the anode and cathode o. tu7e is

aJ 1:2&Q1J1m

7J 12:&Q1J1m

cJ 12&Q1J1m

dJ:12&Q1J1m


105/118

3*Jlaser li0ht is hi0hly

aJ directional

7Jscattered

cJ unpolari@ed

dJ non directional

3+J a li0ht 7eam .rom a hi0h po/er laser /hen .occused 7y a lens can produce

aJ a hi.h temperature

7J a lo/ temperature

cJ a moderate temperature

dJ a 6ery lo/ temperature

3,J CT scannin0 is the a77re6iate name o.

aJ computed technolo0y

7J computed tomo0raphy

cJ coputari@ed techniue

dJ classical techniue

3J the dimensions o. strain is

aJT

7J '

cJLTJ1

#Jnone

&Jthe ratio o. applied stress to 6olumetric strain is called

aJ youn0s modulus

7J shear modulus

cJ 7ul; modulus

dJ modulus o. elasticity

&1J one Doule o. ener0y a7sor7ed per ;ilo0ram o. 7ody is

aJ rem

7J roent0ens

cJ 0rey

dJ 7ecuerel

&2J /ilson cloud cham7er is 7ased on the principle that super saturated 6apours condense more rapidly on

aJ dust particles only

7J ions only

cJ neither dust nor ions

dJ ions and dust particles

1: stationary /a6es only o. discrete set o. .reuencies are set up in medium: this .act is called

a: harmonics

7: o6ertones

c: uanti@ation o. .reuencies

d: superposition o. .reuencies

2:ne/ton calculated the 6elocity o. the sound in air at S:T:P eual to

a:2, mOs

7:2( mOs


106/118

c:3 mOs

d:322 mOs

3:/hich one o. the .ollo/in0 properties o. sound is a..ected 7y chan0e in air temperature

a:.reuency

7:amplitude

c:intensity

d:/a6elen0th

&:the 6elocity o. sound in air /ould 7ecome dou7le than its 6elocity at2C is

a:313 4

7:(,* 4

c:, 4

d:11+2 4

(:i. 2 /a6es pass throu0h the medium in 1 second /ith speed 2 mOs then the /a6elen0th is

a:2 m

7:2 m

c:& m

d:1 m

*:7eats can 7e heard /hen di..erence o. .reuency is not more than

a:,

7:1

c:&

d:*

+:the system .ollo/ed 7y ne/ton .or the determination o. speed o. sound in air is

a:adia7atic

7:isothermal

c:iso7aric

d:isochoric

,:stars mo6in0 to/ards the earth sho/

a:red shi.t

7:7lue shi.t

c:yello/ shi.t

d:0reen shi.t

:the speed o. sound in air at S:T:P is 3 mOs:i. the air pressure 7ecomes dou7le the temperature remains the same> the speed o. sound

/ould 7ecome

a:12 mOs

7:* mOs

c:3 under root 2 mOs

d:3 mOs

1:destructi6e inter.erence occurs as

a:t/o /a6es that are in phase and mo6in0 in opposite direction meet

7:crests o. t/o /a6es coincide and topple o6er

c:trou0h o. t/o /a6es coincide

d:the crest o. one /a6e coincides /ith the trou0h o. an oncomin0 /a6e


107/118

11:/hat does a /a6e carry

a:particles

7:ener0y

c:matter

d:heat

12:the speed p. sound in steel is 0reater than it is in air 7ecause steel is

a:more elastic than air

7:less elastic than air

c:more dense than air

d:less dense than air

13:a source produces sound /ith .reuency o. 1 H@:t mo6es a/ay .rom the o7ser6er at a speed o. sound:/hat .reuency does the

o7ser6er detect

a:1 H@

7:( H@

c:less than 1 H@

d:o7ser6er hears no sound

1&:i. the ener0y o. lon0itudinal /a6e tra6els .rom south to north> the particle o. medium mo6e

a:.rom south to north only

7:7oth north and south

c:.rom east to /est only

d:they are created 7y 6i7ratin0 source

1(:a set o. 31 tunin0 .or;s is so arran0ed that each 0i6es ( 7eats per second /ith the pre6ious one:i. the .reuency o. last tunin0 .or; is

dou7le to that o. the .irst> the .reuency o. third tunin0 .or; is

a:2( H@

7:22 H@

c:1* H@

d:1( H@

1*:in inter.erence there is redistri7ution o.

a:amplitude

7:.reuency

c:phase

d:ener0y

1+:doppler e..ect is independent o.

a:distance 7et/een source and listener

7:6elocity o. source

c:6elocity o. listener

d:none o. these

1,:a source emits a sound o. .reuency & H@ 7ut the listener hears it to 7e 3 H@:7ecause

a:the listener is mo6in0 to/ard the source

7:the source is mo6in0 to/ard the listener

c:source is mo6in0 a/ay .rom listener

d:the listener has a de.ecti6e ear


108/118

1:the source and o7ser6er are mo6in0 to/ard each other /ith a speed eual to 6 O 2 /here 6 is speed o. sound:The source is emittin0

sound o. .reuency n>the .reuency heard 7y the listener /ill 7e

a:@ero

7:n

c:n O 3

d:3n

2:an o7ser6er mo6es to/ards a stationary source o. sound /ith speed 1 O (th o. the speed o. sound:the /a6elen0th and .reuency o. the

source emitted are Nlam7da5 and . respecti6ely:the apparent .reuency and the /a6elen0th recorded 7y o7ser6er are respecti6ely

a:1:2 .>lam7da

7:.> 12 lam7da

c::,. > :, lam7da

d:1:2 . > 1:2 lam7da

21: the /a6elen0th o. .undamental mode o. 6i7ration o0 s closed pipe is

a: 2l

7:&l

c:l

d:lO2

1st year chemistry important mcqs for exam 2013

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