1.

Which of the followingis a polar molecule ?

Answer»

`BfF_(3)`
`SF_(4)`
`SiF_(4)`
`XeF_(4)`

Solution :`SF_(4)` has a distorted geometry due to presence of a
LONE pair of electons and
hence is polar . All other MOLECULES are symmertical
and have ZERO net dipole moment .


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