P-Block Elements Ques 541
Question: The factor responsible for weak acidic nature of B-F bonds in $ BF_3 $ is
Options:
A) large electronegativity of fluorine
B) three centred two electron bonds in $ BF_3 $
C) $ p\pi -d\pi $ back bonding
D) $ p\pi -p\pi $ back bonding
Show Answer
Answer:
Correct Answer: D
Solution:
It is $ p\pi -p\pi $ back bonding involving B and F. The smaller atoms show more back bonding.
