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ChemistryNEET 2024Hydrogen bonding and dipole moment

Chemical Bonding and Molecular Structure

Intramolecular hydrogen bonding is present in (three options drawn as structures; the third is HF):

Question 68 as printed in the NEET 2024 booklet

  1. A.Structure (1)
  2. B.Structure (2)
  3. C.HF
  4. D.Structure (4)✓

Solution

Only in o-nitrophenol are the –OH and –NO groups close enough to form a hydrogen bond within the same molecule (a six-membered chelate ring). The m- and p-isomers and HF hydrogen-bond only between molecules.

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