P Block Elements

The acidic strength of \(\mathrm{HX}(\mathrm{X}=\mathrm{F}, \mathrm{Cl}, \mathrm{Br}\) and \(\mathrm{I})\) follows the order: \(\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}\).

Fluorine exhibits \(-\)1 oxidation state whereas other halogens exhibit \(+1,+3,+5\) and \(+7\) oxidation states also.

The enthalpy of dissociation of \(\mathrm{F}_2\) is smaller than that of \(\mathrm{Cl}_2\).

Fluorine is stronger oxidising agent than chlorine.