The p-Block Elements
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(CH3)3 N is basic but (CF3)3 N is not basic. Explain.

Basicity can be account by the availbility of electron in case of (CH3)3 N there is more electron avaliable than (CF3)3 . This is due to different electronegativities of H and F bonded to nitrogen. In (CH3)3 N the lone pair of N is concentrated on N and so it can act as an electron pair donor (Lewis base). However in (CF3)3 N, the electron density on n is decreased due to strongly electronegative F atom attached to C. Hence it cannot act as a Lewis base.
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