MCQ
Tetrahalides of group $14$ elements (except that of carbon) act as
- AReducing agents
- ✓Lewis acid
- CLewis bases
- DNone of these
✓
Answer
Correct option: B.
Lewis acid
b
The tetrahalides are covalent and have tetrahedral geometry. Their thermal stability decreases down the group and the tetrahalides of group $14$ except that of carbon are readily hydrolysed. In carbon there is no vacant $d$-orbitals so it cannot increase its valency beyond four. The halides of carbon do not act as lewis acids.
The tetrahalides are covalent and have tetrahedral geometry. Their thermal stability decreases down the group and the tetrahalides of group $14$ except that of carbon are readily hydrolysed. In carbon there is no vacant $d$-orbitals so it cannot increase its valency beyond four. The halides of carbon do not act as lewis acids.
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