For a 0.1 m solutions each of two solutes X and Y in which solute X behaves as a univalent electrolyte and Y dimerises in solution. The correct statement (s) are

Since the solute X behaves as univalent electrolyte in solution, so for this solute, i = 2
Since the solute Y dimerises in solution, so for this
$\text{ solute }\mathrm{i}=\frac{1}{2}$
We know that
b.p. $\propto$i, $\therefore$b.p. of X will be greater than that of Y
$\text{ Osmotic pressure }\propto \mathrm{i},\therefore \text{ O.P. of }\mathrm{X}>\text{ O.P. of }\mathrm{Y}$
$\text{ Freezing point }\propto \frac{1}{\mathrm{i}};\therefore \text{ f.p. of }\mathrm{X}<\text{ f.p. of }\mathrm{Y}$
$\text{ and relative lowering of V.P. i.e. }\frac{\mathrm{\Delta P}}{{\mathrm{P}}^{\circ }}\propto \mathrm{i}$
$\therefore {\left(\frac{\mathrm{\Delta P}}{{\mathrm{P}}^{\circ }}\right)}_{\mathrm{X}}>{\left(\frac{\mathrm{\Delta P}}{{\mathrm{P}}^{\circ }}\right)}_{\mathrm{Y}}$
Thus statement (d) is incorrect. All other statements are correct.