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The main factor responsible for waek aci...

The main factor responsible for waek acidic nature of `B-F` bonds in `BF_(3)` is

A

`ppi-ppi` back bonding

B

`ppi-dpi` back bonding

C

three centred-two electron bonds in `BF_(3)`

D

large electronegitivity of F

Text Solution

Verified by Experts

(a) it is `ppi-ppi` bonding involving B and F-atom responsible for the acidic nature halides as `BF_(3)ltBCl_(3)ltBBr_(3)ltBl_(3)`
Smaller, atom shows more back bonding
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