1BF3 > AlCl3 > ZnCl2 >FeCl3 > SnCl2
Arrange thse lewis acids in odere of strength
FeCl3
ZnCl2
SnCl2
AlCl3
BF3
H+
-
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7 Answers
29@Avinav..where is H+ in ur answer...and btw BF3 should not be the strongest Lewis Acid..in BF3 there is back bonding...
1considering what govind told about back-bonding in BF3 and taking the fact about dimerisation of AlCl3. They shouldn't be much stronger lewis-acids. But both these should be more acidic then SnCl2 and ZnCl2 because of charge distribution on central atom. Moreover, since in stephens reaction SnCl2 is widely used, even it should be not much stronger lewis acid. Therefore, condition should be like:
FeCl3 > AlCl3 > BF3 > SnCl2 > ZnCl2 .
PS: I'm not sure of this way.
PPS: Do tell the right answer anyway.
