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Chemistry
The main factor responsible for acidic nature of BF3 is
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Q. The main factor responsible for acidic nature of $BF_3$ is
The p-Block Elements
A
$pπ-dπ$ back-bonding
7%
B
three centre-electron bonds in $BF_3$
13%
C
large electronegativity of F
40%
D
$pπ-pπ$ back-bonding.
40%
Solution:
$pπ-pπ$ back-bonding is responsible for acidic nature of boron halides. Smaller atoms show more backbonding.