Statement (I) ; $2\mathrm{MCl}+{\mathrm{H}}_2{\mathrm{SO}}_4\to {\mathrm{M}}_2{\mathrm{SO}}_4+2\mathrm{HCl}$is a feasible reaction

Statement (II) : Sulphuric acid is less volatile than Hydrochloric acid

Due to intermolecular H-bonding , B.P of  ${\mathrm{H}}_2{\mathrm{SO}}_4$ is high (Low volatility)

It is useful to prepare more volatile acids than it;

Ex; $\mathrm{HCN},{\mathrm{H}}_2\mathrm{S},{\mathrm{H}}_2{\mathrm{SO}}_3,{\mathrm{H}}_2{\mathrm{CO}}_3,\mathrm{HF} \mathrm{etc}$