Q5 / 75 · JEE Main 2020 (06 Sep Shift 2) · Chemistry

Dihydrogen of high purity $(> 99.95 %)$ is obtained through :

A
The reaction of $Zn$ with dilute $HCl$ .
B
The electrolysis of acidified water using $Pt$ electrodes.
C
The electrolysis of brine solution.
Correct answer
D
The electrolysis of warm $Ba {(OH)}_{2}$ solution using $Ni$ electrrodes.

Solution

Dihydrogen of high degree of purity

(> 99.95 %)

is obtained by the electrolysis of warm aqueous barium hydroxide solution between nickel electrodes.

Hence, the correct answer is option: 'D'.