HARD
8th CBSE
IMPORTANT
Earn 100

Answer the following questions in detail. 

a) With the help of an activity, explain the chemical effects caused by electric current.

Important Questions on Chemical Effects of Electric Current

HARD
8th CBSE
IMPORTANT

Describe the process by which a copper spoon can be coated with silver.

MEDIUM
8th CBSE
IMPORTANT

Give some applications of electroplating.

MEDIUM
8th CBSE
IMPORTANT
Look at the picture below and answer the following question.

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Identify the process shown in the picture.

MEDIUM
8th CBSE
IMPORTANT
Look at the picture below and answer the following question.
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Explain how the process is carried out.
MEDIUM
8th CBSE
IMPORTANT

Look at the picture below and answer the following question.
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How is the process shown in the picture helpful?

MEDIUM
8th CBSE
IMPORTANT
When a solution containing a few drops of lemon juice is tested with a tester, the bulb does not glow. How can we determine whether the solution conducts electricity or not?
MEDIUM
8th CBSE
IMPORTANT
Can we electroplate plastic on a steel plate? Give reasons to justify your answer.
MEDIUM
8th CBSE
IMPORTANT

Complete the mind map given below.
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