Published by:
CGP EDU Academic Team
Published on: August 14, 2026
In which one of the following molecules strongest back donation of an electron pair from halide to boron is expected?
Text Solution
Verified by ExpertsThe correct answer is:
B
Type of back bonding
BF 3 BClBBr 3 BI 3
(2p 
− 2p 
) (2p 
− 3p 
) (2p 
− 4p 
) (2p 
− 5p 
)
Therefore back bonding strength is as follows
BF 3 >BCl> BBr 3 > BI 3
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