Question

Hydrogen bonding plays a central role in the following phenomena (a) Ice floats in water(b) Higher Lewis basicity of primary amines than tertiary amines in aqueous solutions(c) Formic acid is more acidic than acetic acid(d) Dimerisation of acetic acid in benzene

Answer 1

Hydrogen bonding plays an important role in the chemistry

Answer 2

(c) Formic acid is more acidic than acetic acid

The strength of an acid is determined by its behaviour during reactions. Formic acid is more highly reactive than acetic acid since it can easily lose a hydrogen bond from its structure thus it has a weaker hydrogen bond than acetic acid which is a weak acid