Home Chemistry Chemical Bonding and Molecular Structure Mix The boiling point of p-nitrophenol is higher…
Chemistry Chemical Bonding and Molecular Structure Mix Single Correct MCQ
Published on: August 13, 2026

The boiling point of p-nitrophenol is higher than that of o-nitrophenol because :

A
NO 2 group at p-position behaves in a different way from that at o-position
B
intramolecular hydrogen bonding exists in p-nitrophenol
C
there is intermolecular hydrogen bonding in p-nitrophenol
D
p-nitrophenol has a higher molecular weight than o-nitrophenol

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The correct answer is:
C

Orthonitrophenol has lower boiling point (i.e. more volatile) because it exists as discrete molecules than its para-derivative, where association of molecules takes place using intermolecular H-bonding.

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