Page 161 - Science Class 08

6. What is ca on?
7. What is electrolysis?

8. What is electropla ng?
F. Long answer ques ons.
1. How can we carry out the process of electrolysis of water?

2. What happens when electric current is passed through the copper sulphate solu on?
3. How does the process of electropla ng take place?
4. Write any three uses of electropla ng.
5. What is the use of electropla ng in industries?

Project ActivityActivityActivity
Project
Project
Project Activity
Show electropla ng by labelling the following diagram.

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HO
HOTSTSTS
HO
HOTS
A. Which of these do you think uses less electrical energy— electric bulb or LED? Why?
B. Why should we not touch the electrical appliances with wet hands?

C. Why should we not try to put out fire in an electrical appliance by pouring water on it?

Science-8 161