Question

Which properties of substances are attributed to hydrogen bonding?

• A. Solubility of some covalent substances in water
• B. Existence of certain substances such as water or alcohol in liquid state
• C. Higher boiling points of some substances in comparison with the analogous binary compounds of the other elements belonging to same groups
• D. All of the above

Answer 1

Answer: (D)

All of the above

A hydrogen atom, bonded covalently to a highly electronegative atom in a compound, whose molecule has a dipole-dipole interaction between the previously mentioned atoms, is responsible for the formation of the hydrogen bond.

So, Solubility in water and existence of water (a polar solvent) in the liquid state, also, the higher boiling point of :

a) $H_{2}O$ compared to $H_{2}S,H_{2}Se,H_{2}Ti$

b) $HF$ compared to $HCl,HBr,HI$

c) ${NH}_3$ compared to ${PH}_3$, as $H_3$

is a property of (intermolecular) hydrogen bonding.

Hence, option D is correct.