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Extraction of Aluminium

State the rea...

Question

State the reason for a difference in the product formed at the anode during electrolysis of aq. $C u S O_{4}$ solution using an active copper anode.

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Solution

At cathode:
$C u^{+ 2} + 2 e^{-} \to C u$
At anode:
$C u \to C u^{+ 2} + 2 e^{-}$

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Q. State the reason for a difference in the product formed at the anode during electrolysis of aq.

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Q. Assertion: Starting from aq. copper [II] sulphate solution, equations for the reactions at the cathode and anode during electrolysis of aq.

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at anode:

C u^{+ 2} + 2 e^{-} \to C u

C u \to C u^{+ 2} + 2 e^{-}

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(a) State observation at the anode when aqueous copper sulphate solution is electrolysed using copper electrodes.

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