Question

Which of the following exhibits H-bonding?

• A. $C{H}_4$
• B. $H_{2}Se$
• C. $N_2{H}_4$
• D. $H_{2}S$

Answer 1

The correct option is C $N_2{H}_4$

In $C{H}_4,H_{2}Se$ and $H_{2}S$ the central atoms are not highly electronegative; hence do not form hydrogen bonds with itself and other molecule. In $N_2{H}_4$ the nitrogen is highly electronegative and thus is able to form hydrogen bond with itself and other molecules which contain hydrogen atoms bonded to highly electronegative atom.