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Q.

Is it true that in electrolysis of water, hydrogen is collected at the cathode and oxygen is collected at the anode ?


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a

True

b

False 

answer is A.

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Detailed Solution

The given statement is True.
When an electric current is passed through the water with a little sulphuric acid added as an electrolyte to increase the number of free ions, the water dissociates into hydrogen and oxygen. Because hydrogen gas is liberated at the cathode, which is the negative terminal, it is attracted to the cathode, while oxygen, as the negative ion, is attracted to the positive electrode anode.
 
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