Q. $o$-Hydroxybenzaldehyde is a liquid at room temperature while $p$-hydroxybenzaldehyde is a high melting solid because of
Chemical Bonding and Molecular Structure
Solution:
$ o$-Hydroxybenzaldehyde shows intramolecular hydrogen bonding whereas $p$-hydroxybenzaldehyde has intermolecular hydrogen bonding. Thus $p$-hydroxybenzaldehyde is an aggregate of a number of molecules and therefore, it is a high melting solid.
