EASY
8th CBSE
IMPORTANT
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The article to be electroplated is made

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Important Questions on Chemical Effects

EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>EXERCISES>Q 5
Tin cans used for storing food are made by electroplating.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 1
Most liquids that conduct electricity are the solutions of _____, _____, _____.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 1
The passage of an electric current through a solution causes _____ (heating / magnetic / chemical) effects.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 1
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the _____ (positive / negative) terminal of the battery.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 1
The process of depositing a layer of any desired metal on another material by means of electricity is called _____.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 2
When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 3

Name three liquids which when tested in the manner shown in figure may cause the magnetic needle to deflect?

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MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 12 - Chemical Effects>Some Questions from NCERT>Q 4
The bulb does not glow in the setup shown in figure. List the possible reasons. Explain your answer.