Question

Comparatively high boiling point of $HF$ is due to:

• A. High reactivity of fluorine
• B. Small size of hydrogen atom
• C. Formation of hydrogen bonds and consequent association
• D. High I.E. of flourine

Answer 1

The correct option is C Formation of hydrogen bonds and consequent association

Intermolecular hydrogen bonding is found in $HF$ due to higher electronegativity of fluorine atoms

$---H-F---H-F---H-F---$

Hydrogen bonding is helpful in the association of $HF$ molecule due to which it is found in liquid form and has comparatively high boiling point.