Assertion : Aluminium chloride in acidified aqueous solution from octahedral `[AI(H_(2)O)_(6)]^(3+)` ion.
Reason :In `[AI(H_(2)O)_(6)]^(3+)` complest ion the `3d` orbital of Al are involved and the hybridisation state of AI is `sp^(3)d^(2)`.

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

Both are correct and Reason is the correct explanation of Assertion In `[AI(H_(2)O)_(6)]^(3+)`, aluminimum is in `+3` oxisation state so
`[AI(H_(2)O)_(6)]^(3+)`