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Question

The substance obtained at the cathode during the electrolysis of acidified water is:

A
Hydrogen
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B
Water vapour
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C
Dilute sulphuric acid
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D
Oxygen
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Solution

The correct option is A Hydrogen
During electrolysis, water splits to form hydrogen and oxygen. Hydrogen gas is liberated at the cathode, while oxygen gas is liberated at the anode.

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