1.

Which of the following has the minimum heat of dissociation

Answer»

`(CH_(3))_(3)N: to BF_(3)`
`(CH_(3))_(3)N: to B(CH_(3))_(2)F`
`(CH_(3))_(3)N: to B(CH_(3))_(3)`
`(CH_(3))_(3)N: to B(CH_(3))F_(2)`

Solution :Due to +I effect of methyl GROUPS the Lewis character of `B(CH_(3))_(3)` DECREASE and COORDINATION becomes weaker.


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