1.

Which of the following is most basic towards B(CH_(3))_(3)

Answer»

`4-CH_(3)C_(5)H_(4)N`
`(C_(2)H_(5))_(3)N`
`NH_(3)`
`2-CH_(3)C_(5)H_(4)N`

Solution :It is easier to remove a proton from 4-methylpyridine, and the electron left behind when the proton is removed is delocalized ONTO the ELECTRONEGATIVE nitrogen atom. In 2-methylpyridine, electron can be delocalized only onto the carbon atom.


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