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Which of the following would have a perm...

Which of the following would have a permanent dipole moment ?

A

`SiF_(4)`

B

`SF_(4)`

C

`XeF_(4)`

D

`BF_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`SF_(4)` has permanent dipole moment. `SF_(4)` has `sp^(3)d` hybridization and see saw shape (irregular geometry)

Whereas `XeF_(4)` shows squre planar geometry, `SiF_(4)` has tetrahedral shape, and `BF_(3)` has triangular planar shape. All these are symmetric molecules. Hence `mu=0`
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