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Assertion : Be SO(4) and MgSO(4) are sol...

Assertion : `Be SO_(4)` and `MgSO_(4)` are soluble in water.
Reason : `BaSO_(4)` is water insoluble because lattice energy of `BaSO_(4)` is higher than its hydration energy.

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.

Text Solution

Verified by Experts

The correct Answer is:
B
`BeSO_(4)` and `MgSO_(4)` are readily soluble in water, the solubility decreases from `CaSO_(4)` to `BaSO_(4)`. The greater hydration enthalpies of `Be^(2+)` and `Mg^(2+)` ions overcome the lattice enthalpy factor and therefore their sulphates are soluble in water.
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