Strongest intermolecular hydrogen bond is present in the following molecules pairs

Options

A. `SiH_4 and SiF_4`
B. `CH_3 - overset(O)overset(||)C - CH_3 and CHCl_3`
C. `H - overset(O) overset(||)C - OH and CH_3 - overset(O)overset(||)C - OH`
D. `H_2O and H_2`

Answer

C

Explanation

Due to multiple `- OH and - oversetOoverset(||)C -` groups both molecules forms multiple hydrogen bonds. So this pair will show strongest hydrogen bond.