Consider the following: (i) `2H_2O_((I))to O_(2(g))+4H_((aq))^++4e^-` , `E_(cell)^@=+1.23` V
(ii) `2SO_(4(aq))^(2-)to S_2O_(8(aq))^(2-)+2e^(-)` , `E_(cell)^@=+1.96` V
Which of the following statements is true?

Options

A. In the electrolysis of dil. `H_2SO_4` , (i) is preferred at the anode.
B. In the electrolysis of conc. `H_2SO_4` (1) is preferred at the anode.
C. In the electrolysis of dil. `H_2SO_4` , (ii) is preferred at the anode.
D. In the electrolysis of conc. `H_2SO_4` , both (i) and (ii) occur at anode.

Answer

A

Explanation

In the electrolysis of dil. `H_2SO_4` , (i) is preferred at the anode.