Which of the following compounds show intramolecular hydrogen bonding?

Ao-nitrophenol
Bp-nitrophenol
Co-hydroxybenzaldehyde
Dm-hydroxybenzaldehyde

Answer: A, C

Intramolecular hydrogen bonding needs the donor O-H and the acceptor atom to be adjacent so a stable ring forms. In the ortho isomers the OH is next to

NO X_{2}

or CHO, giving a six-membered chelate ring. The para and meta isomers cannot form such a ring and associate intermolecularly.

Practice Chemical Bonding More on Hydrogen bonding and intermolecular forces

Previous questionNext question

More questions on Hydrogen bonding and intermolecular forces

Which of the following liquids is expected to have the highest viscosity at room temperature? JEE Main level
n-Pentane boils at 36 degC but its isomer neopentane boils at 9.5 degC. The reason is that JEE Main level
The potential energy of London dispersion interaction between two neutral molecules separated by distance r varies as JEE Main level
Which of the following exhibit intermolecular hydrogen bonding in the pure liquid state? JEE Main level
In hexagonal ice, every water molecule is hydrogen bonded to four neighbours. The average number of distinct hydrogen bonds per water molecu... JEE Advanced level
3.00 g of ethanoic acid (molar mass 60 g mol^-1) is dissolved in 100 g of benzene (K_f=5.12 K kg mol^-1). Assuming that the acid is complete... JEE Advanced level