Question

(SiH3)3N is a weaker bas than (CH3) 3N.

Answer 1

Lone pair of electrons on nitrogen in (SiH3)3N are made up in pπ-dπ back bonding, while in CH3)3N such a pπ-dπ bonding is not possible dur to absense of of vacent d orbita in carbon therefore CH3)3N is more basic