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Which of the following is a Lewis acid ?...

Which of the following is a Lewis acid ?

A

`BF_(3) gt BCl_(3) gt BBr_(3)`

B

`BBr_(3) gt BCl_(3) gt BF_(3)`

C

`BCl_(3) gt BBr_(3) gt BF_(3)`

D

`BCl_(3) gt BBr_(3) gt BF_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
The acidic strength of boron halides decreases as follows:
`BF_(3) < BCl_(3) < BBr_(3) < BI_(3)`
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