1.

Lewis acid character of boron trihalides is as a follows :

Answer»

`BF_(3) GT BCl_(3) gt BBr_(3) gt BI_(3)`
`BCl_(3)gt BF_(3) gt BBr_(3)gt BI_(3)`
`BI_(3)gt BBr_(3)gt BCl_(3)gt BF_(3)`
`BI_(3) gt BF_(3)gt BCl_(3) gt BBr_(3)`

Answer :C


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