The product of electrolysis of an aqueous solution of `K_2SO_4` using inert electrodes, at anode and cathode respectively : `O_2` and `H_2` , `O_2` and K , `O_2` and `SO_2`, `O_2` and `SO_3`

Options

A. `O_2 and H_2`
B. `O_2 and K`
C. `O_2 and K`
D. `O_2 and SO_2`

Answer

A

Explanation

`K_2SO_4 rarr 2K^ + +SO_(4)^(2-)`
`H_(2)O hArr H^ + OH^-`
At cathode : `2H_2O + 2e^(-) rarr H_2 uarr +2OH^-`
At anode : `2H_2O - 4e^- rarr O_2 uarr + 4H^+`