Chemistry - CHEMICAL BONDING Question with Solution | TestHub

${\mathrm{NH}}_3-{\mathrm{sp}}_{}^3$ :107° ${\left({\mathrm{CH}}_3\right)}_3\mathrm{N}-{\mathrm{sp}}^3$ : 108°-bulky have more repulsion than smaller H ${\left({\mathrm{SiH}}_3\right)}_3\mathrm{N}-s{\mathrm{p}}^2:120^{\circ }\mathrm{LP}$ of N engages in back bonding with empty d orbitals of Si