Discussion Forum : P Block Elements
Question -


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

Options:
A .   BF3>BCl3>BBr3
B .   BBr3>BCl3>BF3
C .   BCl3>BF3>BBr3
D .   BCl3>BBr3>BF3
Answer: Option B
:
B

Back bonding tendency decreases from F to I



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