projects.icbse.com_chemistry_465.docx

8/10/2019 projects.icbse.com_chemistry_465.docx

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GYANESHTIWARI

RollNo.6261924

XII(SCIENCE

)


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Page | 1


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C O N TENTS

I. Acknowledgement

II. Certificate

III. AimIV. Materials Required

V. Theory VI.

Procedure VII.

Oser!ationsVIII. Conclusions

I". Precautions

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A cknowled gement

It is my duty to record my sincere thanks

and dee# sense of gratitude to my

res#ected teacher Mr. $an%ay Mishra

for his !alued guidance & interest and

constant encouragement forthe

fulfillment of the #ro%ect.

'yanesh Tiwari

Class( "II )science*

+,+-,/

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C ert ifi cat e

Certified that this is the onafide

work of 'yanesh Tiwari of class "II of

0.V. A.1.$ Ra%okri 2.3. 45 . 6e has

#erformed these e7#eriments during

academic year ,88(-8.

The student9s initiati!e& coo#erati!eness

: #artici#ation during the #ractical

classes were e7cellent. 6is aesthetic

#resentation& !isual a##eal& e7#ression :

neatness were e7cellent.

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6is content accuracy& creati!ity&

originality : analysis of different

#erce#tion were e7cellent.

Mr. $an%ay Mishra

T.$ignature;(

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AIM

To study of the effect ofmetal

coupling on the rate ofcorrosions.


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Mate ri al sre! i re" #Apparatu

s:

ea!ers"15# $ron sheets of 2%

si&e"6# Aluminium rods of 2% si&e"

6# rass rods of

2% si&e"6# 'inc sheets of 2%

si&e"6# (easuring cylinders#)hemical alance# *eight

o+.

)hemica

ls:

,ydrochloric acid and -odiumhydro+ide.


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Page |


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The ory#/ )orrosion is a serious pro0lem of

some metals li!e iron# &inc#

aluminium and alloys li!e 0rass

hich are commonly used in day

to day life.

/ Apart from reducing the life of

articles made up of these metals

or alloys the chemicalsu0stances formed out of

corrosion hae serious pu0lic

health pro0lems.

/ eplacement of machines ortheir parts and many other

articles in industrial and pu0lic

dealing lead to huge

e+penditure.


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Page |


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/ ,ence# ho to reduce or aoid

corrosionof articles made up of metals or

alloys has 0een a maor su0ect of

study in the field of chemistry and

electro"chemistry.


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Page |


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$ro%e"!re#7i8 (i+ ml. of conc. ,)l ith

241 ml. of ater to form 259 ml.

of solution.

7ii8 Ta!e this solution in seen

dierent 0ea!ers.

7iii8 (ar! each 0ea!er serially

from 1 to . 7i8 Ta!e the eights

of three iron sheets#

three aluminium rods# three 0rassrods and

three &incsheets.

78 ;o !eep iron sheets#

aluminium rods# &inc sheets and

0rass rod in separate


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0ea!ers.

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7i8 Then ta!e iron e . >e2< e2< ||

,D," *hile ,

< electron E , ,

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