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Science Expected Questions

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SCIENCE BY PRIYA MAM

Que 1- Noble oil is the name of which following explosive ?

(A) TNG- Trinitroglycerin

(B) TNT-trinitrotoluene

(C) TNP-Trinitrophenol

(D) TNA-Trinitroaniline

Que 1- नोबल ऑयल किस नाम िा विस्फोटि है?(ए) TNG- Trinitroglycerin

(B) TNT-trinitrotoluene

(C) TNP-Trinitrophenol

(D) TNA-TrinitroanilineUSE CODE

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Explanation

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Ans. TNG-Trinitroglycerin

Que 2- Which of the fossil fuel is the cleanest fuel ?

(A) Natural gas

(B) Diesel

(C) Methane

(D) Petrol

Que 2- जीिाश्म ईंधन में से िौन सा सबसे स्िच्छ ईंधन है?(A)प्रािृतिि गैस(B) डीजल(C) मीथेन(D)पेट्रोल

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Explanation

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Ans. Natural gas

Natural Gas Is The Cleanest Fossil Fuel

Que 3– Aspirin is obtained from ?

(A) Petroleum

(B) Earth

(C) Tree

(D) None

Que 3- एस्स्परिन किससे प्राप्ि िी जािी है?(ए) पेट्रोललयम(ख) पथृ्िी(ग) िकृ्ष(D) िोई नह ीं

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Explanation

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Ans. Tree

Aspirin comes from Spiraea, a biological genus of shrubs that includes natural sources of the drug's key

ingredient: salicylic acid. This acid, resembling

what's in modern-day aspirin, can be found in jasmine, beans, peas, clover and certain grasses and trees.

Que 4– Which chemical is used for making artificial clouds ?

(A) Silver Iodide

(B)Sulphur Iodide

(C) Heavy water

(D) Potassium Nitrate

Que 4– िृत्रिम बादल बनाने िे ललए किस िसायन िा उपयोग किया जािा है?(ए) लसल्िि आयोडाइड(B) सल्फि आयोडाइड(ग) भाि पानी(डी) पोटेलियम नाइटे्रट USE CODE

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Explanation

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Ans. Silver Iodide

The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon

dioxide . This can produce ice crystals at higher temperatures than silver iodide.

Que 5– one carbon credit is equivalent to ?

(A) 10 kg of co2

(B) 100 kg of co2

(C) 1000 kg of co2

(D) 10000 kg of co2

Que 5– एि िाबबन के्रडडट िे बिाबि है?(A) 10 kg of co2

(B) 100 kg of co2

(C) 1000 kg of co2

(D) 10000 kg of co2USE CODE

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Explanation

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Ans. 1000 kg of Co2

was dispvered

Que 6– CNG used in automobiles to check pollution is ?

(A) CH3

(B) CH5

(C) CH4

(D) CH2

Que 6- प्रदषूण िी जाींच िे ललए ऑटोमोबाइल में सीएनजी िा उपयोग किया जािा है??(A) CH3

(B) CH5

(C) CH4

(D) CH2USE CODE

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Ans. CH4

Compressed natural gas (CNG) is considered to be a “cleaner” fuel compared to other fossil fuels. Therefore, it is used as an alternative fuel in motor vehicles to reduce

emissions of air pollutants in transportation.

was dispvered

Que 7– Name the process of biogas production in biogas plant ?

(A) Hydrogenation

(B) Fermentation

(C) Polymerization

(D) None

Que 7- बायोगैस सींयींि में बायोगैस उत्पादन िी प्रकक्रया िा नाम बिाइए?(A)हाइड्रोजनीििण(B)किण्िन(C)बहुलिीििण(D)िोई नह ीं USE CODE

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Ans. Fermentation

Fermentation, chemical process by which molecules such as glucose are broken down anaerobically.

was dispvered

Que 8– Table salt is a product of ?

(A) Strong acid and weak base

(B) Strong acid and strong base

(C)Weak acid and strong base

(D) Weak acid

Que 8- टेबल नमि किसिा एि उत्पाद है?(ए) मजबिू एलसड औि िमजोि िाि य(बी) मजबिू एलसड औि मजबिू िाि य(सी) िमजोि एलसड औि मजबिू िाि य(D) िमजोि अम्ल USE CODE

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Ans. Strong acid and strong base

Another name of table salt is NACL

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Que 9– Chemical formula of heavy water is ?

(A) D2o

(B) H2o

(C) N2o

(D) HO

क्य ू9- भाि जल िा िासायतनि सिू है?(ए) D2o

(बी) H2o

(सी) N2o

(डी) HOUSE CODE

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QUIZ•PRIZE •500•GIFT•10 PM

Explanation

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Ans. D20

The chemical formula of heavy water is D2O. Heavy water looks like water

was dispvered

Que 10– Who invented centigrade scale ?

(A) Anders celsius

(B) Wiliam thompson

(C) Wright Brothers

(D) None of the above

Que 10- सेंट गे्रड स्िेल िा आविष्िाि किसने किया?(ए) एींडसब सेस्ल्सयस(बी) विल म थॉमसन(C) िाइट ब्रदसब(D) उपिोक्ि में से िोई नह ीं

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Ans. Anders Celcius

was dispvered

Que 11– What is the SI unit of acceleration is ?

(A) Newton meter square

(B) Meter per second square

(C) Meter per second

(D) Second per meter square

Que 11- त्ििण िी SI इिाई क्या है?(ए) न्यूटन मीटि िगब(बी) मीटि प्रति सेिीं ड िगब(C) मीटि प्रति सेिीं ड(डी) सेिीं ड प्रति मीटि िगब

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Ans. Meter per second squar

was dispvered it

Que 12– Contact force is another name of ?

(A) Magnetic force

(B) Muscular force

(C) Gravitational force

(D) Frictional force

Que 12- सींपिब बल िा दसूिा नाम है?(ए) चुींबिीय बल(B) स्नायु बल(C) गुरुत्िािषबण बल(घ) घषबण बल

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Explanation

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Ans. Frictional Force

was dispvered it

Que 13– The force of friction between two surface will increase if ?

(A) A layer of lubricant is kept between the two surfaces

(B) The two surfaces are pressed harder

(C) Air gap is created Between the two surfaces

(D) Irregularities on both the surfaces are removed

13- दो सिह िे बीच घषबण िा बल बढेगा अगि?(ए) दो सिहों िे बीच स्नेहि िी एि पिि िखी जािी है(बी) दो सिहों िो जोि से दबाया जािा है(C) दो सिहों िे बीच िायु अींिि बनाया जािा है(डी) दोनों सिहों पि अतनयलमििाएीं हटा द जािी हं

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Explanation

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Ans. The two surfaces are

pressed harder

To increase friction, the surfaces in contact have to be made rough. The two surfaces in contact can also be pressed harder

to increase force between them. Use of adhesive materials that stick surfaces , also increases friction between them.

was dispvered it

Que 14– An image formed by a plane mirror that cannot be obtained on screen ?

(A) Real

(B) Virtual

(C) Erect

(D) Inverted

Que 14- एि प्लेन लमिि द्िािा बनाई गई छवि स्जसे स्क्रीन पि प्राप्ि नह ीं किया जा सििा है?(A) असल (बी) आभासी(ग) सीधी(घ) उलटा USE CODE

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Explanation

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Ans. Virtual

An image that cannot be obtained on a screen is called virtual image.

was dispvered it

Que 15– The force exerted by a magnet is an example of ?

(A) Non—contact force

(B) Electrostatic force

(C) Muscualr force

(D) None

Que 15- चुींबि द्िािा लगाया गया बल इसिा एि उदाहिण है? (ए) गैि सींपिब बल (बी) इलेक्ट्रोस्टैटटि बल (C) मस्िुलि बल(D) िोई नह ीं USE CODE

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Explanation

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Ans. Non—contact force

A magnet can exert a force on iron without coming in contact with it. Hence, the force exerted by a magnet is an example of a

non-contact force.

was dispvered it

Que 16– Which of the following types of lights are strongly absorbed by plants ?

(A) Violet and orange

(B) Blue and Red

(C) Blue and green

(D) All

Que 16- तनम्नललखखि में से किस प्रिाि िी िोिनी पौधों द्िािा दृढिा से ग्रहण िी जािी है?(ए) िायलेट औि नािींगी(बी) ब्लू औि िेड(C) नीला औि हिा(D) सभी USE CODE

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Explanation

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Ans. Red and blue colour

Photosynthesis occurs between wavelengths of about 400 nm and 750 nm. Red and blue colour wavelength is categories in this

wavelength. So, plants absorb these colours. Photosynthesis does not occur in the infra-red or in ultraviolet light

was dispvered it

Que 17– Which of the following category is the most amount of calorie per unit?

(A) Protein

(B) Carbohydrates

(C) Fats

(D) None

Que 17- तनम्नललखखि में से किस शे्रणी में प्रति यूतनट िैलोि िी मािा सबसे अिधि है?(ए) प्रोट न(बी) िाबोहाइड्रटे(ग) िसा(D) िोई नह ीं USE CODE

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Ans. Fats

Per 1 Gram Value

was dispvered it as is known

Que 18– Thiamine is ?

(A) Vitamin B1

(B) Vitamin B3

(C) Vitamin B2

(D) Vitamin B7

Que 18- िथयामीन है?(ए) विटालमन बी 1(बी) विटालमन बी 3(सी) विटालमन बी 2(डी) विटालमन बी 7

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Explanation

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Ans. Vitamin B1


Que 19– Which of the following vitamins contain Nitrogen?

(A) Vitamin A

(B) Vitamin B

(C) Vitamin C

(D) Vitamin D

Que 19- तनम्नललखखि में से किस विटालमन में नाइट्रोजन होिी है?(ए) विटालमन ए(बी) विटालमन बी(C) विटालमन सी(डी) विटालमन डी USE CODE

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Explanation

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Ans. Vitamin B


Que 20– Which of the following is decrese in human body due to dengue fiver ?

(A) Platelets

(B) Sugar

(C) Water

(D) Hemoglobin

Que 20- तनम्न में से िौन सा मानि िि ि में डेंगू िे िािण होिा है?(A) प्लेटलेट्स(ख) चीनी(ग) पानी(D) ह मोग्लोत्रबन USE CODE

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Explanation

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Ans. Platelets

The dengue virus infects more cells, including those in the lymph nodes and bone marrow, macrophages in both the spleen and liver, and monocytes in the blood. The spread and increase of the virus results in viremia, a condition in which there is a high level of dengue virus in the bloodstream.

Note:-Dengue is caused by Aedes aegypti

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