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Q.

Copper deposition can occur from both acidified copper (II) sulfate and alkaline cuprous cyanide solutions. If same current is passed for a specific duration, which of the following outcomes is expected? ( Assume 100 % current efficiency in each experiment)

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a

A greater quantity of copper will be deposited from acidified copper sulfate

b

A greater quantity of copper will be deposited from alkaline cuprous cyanide.

c

An equal amount of copper will be deposited in both cases.

d

Copper deposition will not occur in either case.

answer is B.

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Detailed Solution

W=QF×An   For smaller n, w will be higher.

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