On electrolysis of dilute copper(II) sulphate solution, copper is deposited at the cathode but hydrogen gas evolves there.

True

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False

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Solution

The correct option is B
False

On electrolysis of dilute copper(II) sulphate solution, copper is deposited at the cathode but no hydrogen gas evolves there. Because copper is below hydrogen in the electrochemical series. So, Cu $^{2 +}$ gets easily reduced to metallic copper .

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