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Q 1.
Which scientists had shown that if electrodes were immersed in water, and a current was passed oxygen bubbles were formed on the positive electrode and hydrogen bubbles on the negative electrode?
Ans.
William Nicholson.
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Q 2.
Dies pure water conduct electricity?
Ans.
No.
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Q 3.
The passage of an electric current through a solution causes which effect?
Ans.
Chemical.
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Q 4.
Most liquid that conduct electricity are solution of?
Ans.
Acids, Bases and salts.
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Q 5.
For creating a tester we require?
Ans.
Battery, a bulb and wire.
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Q 6.
Which bulb is used to detect weak current in the circuit?
Ans.
LED bulb.
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Q 7.
If you pass current through copper sulphate solution, copper gets deposited on the plate connected to which battery?
Ans.
Negative terminal.
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Q 8.
The passage of an electric current through a solution causes?
Ans.
Chemical effects.
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Q 9.
The passage of an electric current through a solution causes?
Ans.
Chemical effects.
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Q 10.
The process of depositing a layer of any desired metal on another material by means of electricity is called?
Ans.
Electroplating.
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