Question

Electrolysis of an aqueous solution of \(Na_2SO_4\) between Pt electrodes liberates a gas \(X\) at anode and gas \(Y\) at cathode. \(X\) and \(Y\) respectively are

• A. \(H_2,\ O_2\)
• B. \(O_2,\ H_2\)
• C. \(SO_2,\ H_2\)
• D. \(H_2,\ SO_2\)

Hint:

In electrolysis of aqueous \(Na_2SO_4\) using inert Pt electrodes, water is electrolysed: oxygen is liberated at anode and hydrogen at cathode.

Answer 1

The Correct Option is B