Assertion (A): `BaCO_(3)` is more soluble in `HNO_(3)` than in water.
Reason (R ): Carbonate is a weak base and reacts with `H^(o+)` ions to form strong acid causing barium salt to dissociate.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer

a

Explanation

`Ba^(2+)(aq)+CO_(3)^(2-)(aq)+H^(+)(aq) rarr Ba^(2+)(aq)+CO_(2)(g)+H_(2)O(l),`
`BaCO_(3)` is water insoluble as `Delta H_("lattice") gt Delta H_("hydration").`