Assertion (A): DIRECTIONS. In each of the following questions, a statement of Assertion (A) is given folowed by a corresponding statement of Reason \( (\mathbf{R}) \) just below it. Of the statements, mark the correct answer as (a) If both assertion and reason are true, and reason is the true explanation of the assertion.
(b) If both assertion and reason are true, but reason is not the true explanation of the assertion.
(c) If assertion is true, but reason is false.
(d) If both assertion and reason are false.
Assertion. \( \mathrm{Na}_{2} \mathrm{SO}_{4} \) is soluble in water while \( \mathrm{BaSO}_{4} \) is insoluble.
Reason (R): Reason. Lattice energy of barium sulphate exceeds its hydration energy.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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