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Which of the following is not a Lewis ac...

Which of the following is not a Lewis acid ?

A

`AlCl_(3).6H_(2)O`

B

`AlCl_(3)`

C

`SnCl_(4)`

D

`FeCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`AlCl_(3), SnCl_(4)` and `FeCl_(3)`act as Lewis acids because central atom in them have one vacant 3p orbital and five 3d orbitals. But in `AlCl_(3).6H_(2)O`, all these empty orbitals get occupied. Hence it cannot act as Lewis acid.
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