AIPMT PRELIMS2010Chemistry-Chemical Bonding
AIPMT PRELIMS 2010 Chemistry Lewis Acids and Bases MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The tendency of BF₃, BCl₃ and BBr₃ to behave as Lewis acid decreases in the sequence
A
BF₃ > BCl₃ > BBr₃
B
BCl₃ > BF₃ > BBr₃
C
BBr₃ > BCl₃ > BF₃
D
BBr₃ > BF₃ > BCl₃
Correct Answer
Option C
Detailed Explanation
The pπ-pπ back bonding decreases in the order BBr₃ > BCl₃ > BF₃, making BBr₃ the strongest Lewis acid.
Found an issue with this question?