KVPY SX SB Exam 2015 Question Paper

Question : 41 of 120

Marks: +1, -0

CHEMISTRY

The Lewis acid strength of

BBr_3, BCl_3 \and BF_3

is in the order

Solution:

Lewis acid strength of

BBr_3, BCl_3 \and BF_3

is in the order of

BF_3 { <} BCl_3 {< }BBr_3

Due to back bonding

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