Question

In which substance does hydrogen-bonding NOT feature as an intermolecular force?

In which substance does hydrogen-bonding NOT feature as an intermolecular force?

`"A. nitro-phenol"`
`"B. hydrogen fluoride"`
`"C. 2,2,2-trichloroethane-1,1-diol"`
`"D. chlorobenzene."`

Answer 1

`"Option D"`

Explanation:

Hydrogen bonding is known to occur where hydrogen is bound to a STRONGLY electronegative element, and is thus known to operate for water, i.e. `OH_2`, ammonia, `NH_3`, and for hydrogen fluoride, `HF`, and this manifests in their elevated normal boiling points that you should be able to quote.

Now `"chloral hydrate"`, the original `"mickey finn"` is `"2,2,2-trichloroethane-1,1-diol"` certainly fulfils the given criterion. So does `HF`, and so does the phenol derivative.

We are left with chlorobenzene as the solvent in which `"hydrogen-bonding"` does not operate.