Question

Why water is liquid and Hydrogen sulphide gas?

Answer 1

Hydrogen bonding:

• Hydrogen bonding is a crucial intermolecular force found in different chemical compounds.

Liquid nature of water:

• There is considerable hydrogen bonding in water, and the molecules are widely connected by hydrogen bonds.
• So, at normal temperature, water exists as a liquid with a high boiling point.

Gaseous nature of Hydrogen sulphide:

• Sulphur, on the other hand, is less electronegative than oxygen, and the $\mathrm{S}-\mathrm{H}$ bond is far less polar than the $\mathrm{O}-\mathrm{H}$ bond.
• As a result, hydrogen sulfide has no hydrogen bonding and exists as a gas.