Which of the following compounds shows evidence of the strongest hydrogen bonding?

Options

A. Propane-1-ol
B. Propane-2-ol
C. Propane-1,2-diol
D. Propane-1,2,3-triol

Answer

D

Explanation

Propane- 1,2,3-triol or glycerol has very high boiling point i.e., 290°C, The high viscosity and high boiling point of glycerol are due to association of glycerol molecules through extensive intermolecular hydrogen bonding due to presence of three polar - OH group