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Question

Chemistry Question on Electrolysis

On the electrolysis of aqueous solution of Na2SO4, on cathode we get

A

Na

B

H2

C

SO2

D

SO3

Answer

H2

Explanation

Solution

The correct option is (B): HCl<NH4Cl<NaCl<NaCN\text{HCl} < \text{NH}_4\text{Cl} < \text{NaCl} < \text{NaCN}