1.

Which of the following is not Lewis acid

Answer»

`AlCl_(3).6H_(2)O`
`AlCl_(3)`
`SnCl_(4)`
`FeCl_(3)`

SOLUTION :`AlCl_(3)` acts as a lewis acid as central atom Al has incomplete octet. `SnCl_(4)` and `FeCl_(3)` ACT as lewis acid because Sn and Fe both have empty d - orbitals.
`AlCl_(3)` is `sp^(2)` hybridised, i.e., it has vacant one 3p orbital and five 3D orbitals. But in `AlCl_(3).6H_(2)O` one vacant 3p orbital and five vacant 3d orbitals are FILLED by the electron pair of oxygen. So `AlCl_(3).6H_(2)O` cannot act as a lewis acid.


Discussion

No Comment Found

Related InterviewSolutions