Which one of the following metals could not be obtained on electrolysis of aqueous solution of its saltsA. `Ag`B. `Mg`C. `Cu`D. `Cr`

Which one of the following metals could not be obtained on electrolysi

1.	Which one of the following metals could not be obtained on electrolysis of aqueous solution of its saltsA. `Ag`B. `Mg`C. `Cu`D. `Cr`
Answer» Correct Answer - B The reduction potential of Mgis less than that of water `(E^(o)=-0.83V)`. Hence their ions in the aqueous solution cannot be reduced instead water will be reduced. `2H_(2)O+2e^(-)toH_(2)+2OH^(-)`.

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Which one of the following metals could not be obtained on electrolysis of aqueous solution of its saltsA. `Ag`B. `Mg`C. `Cu`D. `Cr`

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