Question

1. Which of the following is not used for electroplating of metal
(a) nickel
(b) chromium
(c) silver
(d) sodium

2. When Electrodes are immersed in water and electricity is passed, the bubbles formed on the positive terminal is actually ________ gas.
(a) Hydrogen
(b) oxygen
(c) carbon dioxide
(d) nitrogen

3. When two bodies are rubbed against Each other, they acquire
(a) equal and unlike charges
(b) equal and like charges
(c) unequal and unlike charges
(d) unequal and like charges ​

Answer 1

Answer:

1 b

2 d

3c

Explanation:

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