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Explain, why o-hydroxybenzaldehyde is a ...

Explain, why `o`-hydroxybenzaldehyde is a liquid at room temperature while `p`-hydroxybenzaldehyde is a high melting solid?

A

H-bonding

B

ionisation energy

C

electron gain enthalpy

D

lattice enthalpy.

Text Solution

Verified by Experts

The correct Answer is:
A
o-Hydroxybenzaldehyde shows intramolecular hydrogen bonding whereas p-hydroxybenzaldehyde has intermolecular hydrogen bonding . Thus p-ydroxybenzaldehyde is an aggregate of a number of molecules and therefore, it is a high melting solid.
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