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The metal that cannot obtained by electr...

The metal that cannot obtained by electrolysis of an aqueous solution of its salts is `:`

A

` Ag`

B

` Cr`

C

` Cu`

D

`Mg`

Text Solution

Verified by Experts

The correct Answer is:
D
The reduction potential of Mg is less than that of water `(E^@=- 0. 83 V)`. Hence their ions in the aqueous solution cannot be reduced instead qater will be reduced
`2 H_2 O + 2e^(-_ rarr H_2+ 2 oH^(-)`.
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