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Among the halides (a) BF(3) (b) ...

Among the halides
(a) `BF_(3)`
(b) `BCl_(3)`
(c ) `BBr_(3)`
(d) `BI_(3)`
The order of decreasing Lewis acid character is

A

a,b,c,d

B

d,c,b,a

C

c,d,b,a

D

b,c,d,a

Text Solution

Verified by Experts

The correct Answer is:
B
Order of Lewis acid character
`BI_(3)gt BBr_(3)gt BCl_(3)gt BF_(3)`
due to `p pi - p pi` back bonding.
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