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Question 1 of 31
1. Question
The negative charged ions are called:
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Question 2 of 31
2. Question
Kerosene is:
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Question 3 of 31
3. Question
Magnetic compass connected In a circuit is used to check:
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Question 4 of 31
4. Question
LED glows:
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Question 5 of 31
5. Question
Which of the following is a good conductor of electricity:
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Question 6 of 31
6. Question
When current flows through a conducting solution than the electrode connected to the negati’wc terminal of the battery is called :
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Question 7 of 31
7. Question
Cathode is the electrode connected to the negative terminal of the battery.
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Question 8 of 31
8. Question
Current is the flow of:
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Question 9 of 31
9. Question
A battery is used to:
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Question 10 of 31
10. Question
When electric current is passed through the copper sulphate solution, copper sulphate dissociates into:
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Question 11 of 31
11. Question
The cans, used for storing food, are made by electroplating ……………. on to irons
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Question 12 of 31
12. Question
……………….. is deposited on Iron used in bridges and automobiles to protect it from corrosion and formation of rust.
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Question 13 of 31
13. Question
Car parts, bath taps, kitchen gas burners, bicycle handlebars arc electroplated with:
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Question 14 of 31
14. Question
A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid. A white it glows very dimly for liquid H. You would conclude that:
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Question 15 of 31
15. Question
Which one is the conductor
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Question 16 of 31
16. Question
The process in which a chemical change takes place in a substance, when electric current is passed through it is called:
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Question 17 of 31
17. Question
Electroplating is a process which is:
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Question 18 of 31
18. Question
Which of the fallowing liquid is poor conductor:
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Question 19 of 31
19. Question
The substance which is conductor of electricity is:
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Question 20 of 31
20. Question
We use magnetic needle to find the effect of:
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Question 21 of 31
21. Question
If a switch has some sparking, we will switch it off with the help of:
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Question 22 of 31
22. Question
During electroplating in CuSO4, (Copper sulphate) solution …………………. will get deposit on electrode at negative terminal.
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Question 23 of 31
23. Question
Electroplating is a method of:
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Question 24 of 31
24. Question
Which one of the following is the insulator:
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Question 25 of 31
25. Question
Which liquid do not conduct electricity?
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Question 26 of 31
26. Question
An electrolyte is:
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Question 27 of 31
27. Question
Adding lime water to tap water makes it:
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Question 28 of 31
28. Question
The positive charged ions are called:
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Question 29 of 31
29. Question
Which of the following does not conduct electricity?
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Question 30 of 31
30. Question
An electric current can produce
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Question 31 of 31
31. Question
Pure or distilled water is a
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