Q.

Statement I:  BF3 is weaker Lewis acid than BCl3.
Statement II:  The planar BF3 molecule is stabilised to a greater extent than BCl3 by B -X  backbonding. 

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a

Statement I is correct and statement II is incorrect.

b

Statement I is incorrect and statement II is correct.

c

Both statements I and II are incorrect.

d

Both statements I and II are correct.

answer is A.

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Detailed Solution

BF3 is weaker Lewis acid than BCl3 due to - back bonding.

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