CBSE Class 8 Science Chemical Effects of Electric Current Quiz 1

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

A Distilled water B Silver nitrate C Sulphuric acid D Copper sulphate

2. Which of the following does not conduct electricity?

A Sugar solution B Vinegar solution C Lemon juice solution D Caustic soda solution

3. An electric current can produce

A heating effect B chemical effect C magnetic effect D all of these

4. Pure or distilled water is a

A poor conductor B good conductor C both (a) and (b) D none of these

5. Which of the following is a good conductor?

A Brick B Steel C Plastic D Cotton

6. Polythene is

A a conductor B an insulator C both (a) and (b) D none of these

7. Electroplating is based on

A heating effect of electricity B chemical effect of electricity C physical effect of electricity D magnetic effect of electricity

8. Copper is

A a good conductor B an insulator C both (a) and (b) D none of these

9. Waste from an electroplating factory must be disposed off

A in the nearby river B in the nearby pond C in the nearby cornfield D according to the disposal guidelines of Waste Management Bodies

10. An electrolyte is

A a metal B a liquid that conducts current C a non-metal D none of these

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