MHT CET Chemistry question

Which of the following pairs of metal cannot be obtained by electrolysis of an aqueous solution of its salt?

(A)Ag and Al
(B)Mg and AlCorrect
(C)Ag and Mg
(D)Cu and Cr

Answer: (B)

Solution

Metals with very negative reduction potentials (Mg, Al) cannot be deposited from aqueous solutions because water is reduced to H instead, so the pair Mg and

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Question ID VK-066388