lewis acid??

which of the following statements is correct??

1.BCl3 nd AlCl3 are both lewis acid but BCl3 is stronger
2.BCl3 nd AlCl3 are both lewis acid but AlCl3 is stronger
3.BCl3 nd AlCl3 are equally strong lewis acid
4.none of these

5 Answers

49
Subhomoy Bakshi ·

2.?

1
smsm ·

sorry , but the ans given is "1". i was also thinking it be "2"

1
madhumitha harishankar ·

so 2!

1
lubu ·

yes backbonding is not so strong as that of BF3. It is due 2 d overlap of vacant 2p-orbital with 3p and 4p orbitals doesnt take place effectively due to difference in energy. It may b d reason for BCl3 to b d more stronger btwn des 2. Not so sure.Just an attempt.

1
smsm ·

if we consider
another fact that Al has vacent d orbitals so it can accept more electrons rather than B

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