Question

$BeSO_4$ is soluble in water while $BaSO_4$ is not. Hydration energy decreases down the group from Be to Ba and lattice energy remains almost constant.

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

Answer 1

Answer: (A)

If both assertion and reason are true and reason is the correct explanation of assertion

Answer 2

$BeSO _{4}$ is soluble in water whereas $BaSO _{4}$ is not. This is mainly because the hydration energy decreases down the group from Be to Ba and also their lattice energy remains almost constant.