Which one of the following properties shows that hydrogen resembles alkali metals ?

Options

A. It shown metallic character like alkali metals
B. It is diatomic like alkali metals
C. Its ionisation energy is of the same order as that of alkali metals
D. When hydrogen halides and alkali metals halides are electrolysed, hydrogen and alkali metals are liberated at the cathode.

Answer

D

Explanation

`HCl .underset(larr)rarrH^(+)+Cl^(-)`
At cathode : `H^(+)+e^(-)to(1)/(2)H_(2)`
`NaCl toNa^(+)+Cl^(-)`
At cathode : `Na^(+)+e^(-)toNa`