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Which one of the following arrangements ...

Which one of the following arrangements of molecules is correct on the basic of their dipole moments?

A

`NH_(3) gt BF_(3) gt NF_(3)`

B

`NH_(3) gt NF_(3) gt BF_(3)`

C

`BF_(3) gt NH_(3) gt NF_(3)`

D

`BF_(3) gt NF_(3) gt NH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`mu_(BF_(3)) =0` (Due to `sp^(2)` hybridisation and symmetrical) .
`mu_(NH_(3))gtmu_(NF_(3))`.
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