Question

Explain why:
Hydride of sulphur is a gas while hydride of oxygen is a liquid.

Answer 1

Hydride of sulphur is $H_{2}S$ and that of oxygen is $H_{2}O$. Since oxygen being highly electronegative has a tendency to form hydrogen bond, thereby increases the intermolecular interaction through extensive H-bonding. While, $S$ can not undergo H-bonding and this explains the liquid phase of water and gaseous phase of $H_{2}S$.