Which among the following salts exhibits inverse relation between its solubility and temperature?

Which among the following salts exhibits inverse relation between its solubility and temperature?
  1. $\mathrm{NaBr}$
  2. $\mathrm{NaNO}_3$
  3. $\mathrm{KNO}_3$
  4. $\mathrm{Na}_2 \mathrm{SO}_4$

Solution

Solubility of $\mathrm{Na}_2 \mathrm{SO}_4$ decreases with increase of temperature.

Asked in: MHT CET 2023 (13 May Shift 2)

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