Give the reason why has a higher boiling point than .
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Solution
A hydrogen bond is a type of link formed between a hydrogen atom and a pair of other atoms with high electronegativity.
As the force of attraction increases boiling point also increases.
Strong intermolecular Hydrogen bonding occurs between molecules because the nitrogen atom is small in size and high in electronegativity. However, larger molecules cannot establish hydrogen bonds themselves due to their lower electronegativity.
A partial negative charge forms on nitrogen and a partial positive charge develops on hydrogen due to electronegativity differences between the two atoms.
These charges attract neighbouring molecules and establish hydrogen bonds with them.
In, hydrogen bonds exist, whereas, in , hydrogen bonds do not exist.