Chemistry - Liquid Solution Question with Solution | TestHub

The solubility of ${\text{NaNO}}_3$ increases significantly with an increase in temperature.

The solubility of $\text{NaCl}$ increases very slightly with an increase in temperature.

The solubility of ${\text{Na}}_2{\text{SO}}_4\cdot 10{\text{H}}_2\text{O}$ increases up to $32.4^{\circ }\text{C}$, after which it becomes anhydrous ${\text{Na}}_2{\text{SO}}_4$ and its solubility decreases with a further increase in temperature.

Therefore, the correct order of the increase in solubility with temperature is ${\text{NaNO}}_3>\text{NaCl}>{\text{Na}}_2{\text{SO}}_4$.

Answer: ${\text{NaNO}}_3>\text{NaCl}>{\text{Na}}_2{\text{SO}}_4$