In which of the following compounds intra molecular hydrogen bonding is present?

In which of the following compounds intra molecular hydrogen bonding is present?
  1. ethanol
  2. o-nitrophenol
  3. water
  4. ammonia

Solution

o-nitrophenol In o-nitro phenol, there is intramolecular hydrogen bonding between the hydrogen of the - $\mathrm{OH}$ group and the oxygen of the $\mathrm{NO}_{2}$ group, resulting in a lower boiling point.

Asked in: MHT CET 2020 (16 Oct Shift 2)

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