Question

Is HCN a molecular or ionic compound?

Answer 1

Hydrogen cyanide is a molecular species with a relatively high boiling point of `25.6` `""^@C`.

Explanation:

As `HC-=N` is a water-like solvent, it has a relatively high boiling point, in which hydrogen-bonding is manifest as a potent intermolecular force. Of course, hydrogen cyanide is exceptionally soluble in water, where it behaves as a weak Bronsted acid....

`HC-=N(aq) + H_2O(l) rightleftharpoonsH_3O^+ + ""^(-)C-=N`

`K_a=6.17xx10^-10`...