KCET 2015 Chemistry Solved Paper

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Question : 55 of 60

Marks: +1, -0

The correct statement is

BF3 is the strongest Lewis acid among the other boron halides.
BI3 is the weakest Lewis acid among the boron halides.
There is maximum pπ−pπ back bonding in BF3
There is minimum pπ−pπ back bonding in BF3

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