1.

The correct stability order for boron halides is

Answer»

`BF_(3)gtBCl_(3)gtBBr_(3)gtBl_(3)`
`BCl_(3)gtBF_(3)gtBBr_(3)gtBr_(3)`
`Bl_(3)gtBBr_(3)gtBCl_(3)gtBF_(3)`
`BBr_(3)gtBCl_(3)gtBl_(3)gtBF_(3)`

Solution :(a) The stability order for boron halides is explained in terms of back-bonding.


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