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The tendency of BF(3), BCl(3) and BBr(3)...

The tendency of `BF_(3), BCl_(3)` and `BBr_(3)` behave as Lewis acid decreases in the sequnece

A

`BF_(3) gt BCl_(3) gt B Br_(3)`

B

`BCl_(3) gt BF_(3) gt B Br_(3)`

C

`B B_(3) gt BCl_(3) gt BF_(3)`

D

`B Br_(3) gt BF_(3) gt BCl_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`p pi - p pi` back bonding in `BF_(3)`
Bis no more electron deficient hence `BF_(3)` is a weak acid.
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