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Among the following, the correct stateme...

Among the following, the correct statement(s) is(are) :

A

`Al(CH_(3))_(3)` has the three-centre two-electron bonds in its dimeric strucutres

B

`BH_(3)` has the three-centre two-electrons bonds in its dimeric structure

C

the Lewis acidity of `BCl_(3)` is greater than that of `AlCl_(3)`

D

`AlCl_(3)` has the three-centre two-electron bonds in its dimeric structure.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
In dimeric structure of `AlCl_(3)`, the bridged Cl forms a convalent bond with one Cl atom and coordinate bond with the other. As such it does have a `3c-3c` bond as in `Al_(2)(CH_(3))_(6)` and `B_(2)H_(6)`. The option (d) is not correct while all other options (a,b,c) are correct.
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