Chemistry · EQUILIBRIUM

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): For a saturated solution of barium sulphate, the solubility product is given by \( K_{\text{sp}} = [\text{Ba}^{2+}][\text{SO}_4^{2-}] \). Reason (R): Salts having molar solubility less than \( 0.01\text{ M} \) are classified as sparingly soluble salts. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.