Question

During the electrolysis of an aqueous solution of HCOOK, how many different type of gases are obtained?

Answer 1

2

Answer 2

Electrolysis of aqueous HCOOK yields $H_2$ at the cathode from water reduction. At the anode, Kolbe's electrolysis of formate ions produces $H_2$ and $CO_2$. Thus, the two distinct gases obtained are $H_2$ and $CO_2$.