1. Tardigrade
  2. Question
  3. Chemistry
  4. Explain, why o-hydroxy benzaldehyde is a liquid at room temperature while p-hydroxy benzaldehyde is a high melting solid?

Q. Explain, why o-hydroxy benzaldehyde is a liquid at room temperature while p-hydroxy benzaldehyde is a high melting solid?

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Solution:

Intramolecular H-bonding in ortho hydroxy benzaldehyde is
responsible for decrease in melting and boiling points.
p-hydroxy benzaldehyde molecules are associated by
intermolecular H-bonding, has higher melting and boiling
points.

Solution Image