Arrange the aqueous solutions of A(0.01 M sodium chloride), B(0.01 M glucose) and C(0.01 M acetic acid) in increasing order of boiling points.

$\mathrm{\Delta }{T}_{\mathrm{b}}=K_{\mathrm{b}}m$, larger the molality ( or concentration for dilute solution), larger the value of $\mathrm{\Delta }{T}_{\mathrm{b}}$.Hence, larger will be the boiling point. Though, all the three solutions are equimolar, but the number of species available ( or the total concentration of species) will follow the order A> C > B. The same order holds good for boiling points.