Question

In which property listed below, hydrogen does not resemble alkali metals?

• A. Tendency to form cation
• B. Nature of oxide
• C. Combination with halogens
• D. Reducing character

Answer 1

The correct option is B Nature of oxide

Hydrogen form $H^{+}$ like $M^{+}$ in alkali metals.
Hydrogen combine with halogens to form $HX$ like alkali metals form $MX$.
Like alkali metals hydrogen also acts as a reducing agent.
$H_{2}O$ is a neutral oxide while $M_{2}O$ are alkaline in nature.