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MCQ Chemical Effects of Electric Current Chapter 14 Class 8 Science

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MCQ’s For All Chapters – Science Class 8th

1. Which of the following is a bad conductor of electricity?

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Question 1 of 20

2. Which of the following does not conduct electricity?

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Question 2 of 20

3. An electric current can produce

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Question 3 of 20

4. Pure or distilled water is a

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Question 4 of 20

5. Which of the following is a good conductor?

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Question 5 of 20

6. Polythene is

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Question 6 of 20

7. Electroplating is based on

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Question 7 of 20

8. Copper is

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Question 8 of 20

9. Waste from an electroplating factory must be disposed off

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Question 9 of 20

10. An electrolyte is

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Question 10 of 20

11. Flow of electron is called

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Question 11 of 20

12. Which is not a non-electrolyte?

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Question 12 of 20

13. An electric lamp glows due to

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Question 13 of 20

14. Electroplating prevents

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Question 14 of 20

15. Which of the following is not used for electroplating metal articles?

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Question 15 of 20

16. Iron objects can be protected by electroplating them with

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Question 16 of 20

17. In LEDs, the longer lead (wire) is always connected to the _______ terminal

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Question 17 of 20

18. Tap water is a good conductor of electricity while distilled water is not because

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Question 18 of 20

19. When electrodes are immersed in water and electricity passed, the bubbles formed on the positive terminal is actually _______ gas.

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Question 19 of 20

20. When electrodes are immersed in water and electricity passed, the bubbles formed on the negative terminal is actually _______ gas.

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Question 20 of 20