First slide

Electrolysis

Question

Which one of the following metals can not be obtained on electrolysis of aqueous solution of its salts ?

Easy

A

Mg
B

Ag
C

Cu
D

Cr

Solution

$∵ E_{{mg}^{2 +} ∣ Mg}^{\circ} < E_{{Cr}^{3 +} ∣ Cr}^{\circ} < E_{{Cu}^{2 +} ∣ Cu}^{\circ} < E_{{Ag}^{+} ∣ Ag}^{\circ}$

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