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These questions consist of two statement...

These questions consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses:
Assertion: `[Al(H_2O)_6]^(3+)` is a stronger acid than `[Mg(H_2O)_6]^(2+)`.
Reason: Size of `[Al(H_2O)_6]^(3+)` is smaller than `[Mg(H_2O)_6]^(2+)` and posseses more effective nuclear charge.

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 the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
A
The size of `[Al(H_(2)O)_(6)]^(3+)` is smaller than `[Mg(H_(2)O_(6)]^(2+)` Also the former possesses more effective nuclear charge and thus, attracts electron pair from donor more effectively. This gives rise to relatively strong acidic nature of
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