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The power of halides of boron to act as ...

The power of halides of boron to act as Lewis acids decreases in the order

A

`BF_(3)gtBCl_(3)gtBBr_(3)`

B

`BBr_(3)gtBCl_(3)gtBF_(3)`

C

`BCl_(3)gtBF_(3)gtBBr_(3)`

D

`BCl_(3)gtBBr_(3)gtBF_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Order of Lewis acid strength of boron halides is
`BI_(3)gtBBr_(3)gtBCl_(3)gtBF_(3)`
This order is explained on the basic of `ppi-ppi` back bonding opposite to excepted order due to electronegativity
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A2Z-P BLOCK ELEMENTS ( Group 13 -14)-Section D - Chapter End Test
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