Question

In Nitrogen family the H-M-H angle in the hydrides `MH_(3)` gradually becomes closer to `90^(@)` on going from N to Sb. This due to
A. The basic strenth of the hydrides increases
B. Almost pure p - orbital are used for M - H bonding
C. The bond energies of M - H bonds increse
D. The bond pairs of electrons became nearer to the central atom

Answer 1

Correct Answer - B
In nitrogen family the H-M-H bond anlge in hydrides gradually becomes closer to `90^(@)` on going from N to Sb because almost pure p-orbitals are used for M-H bonding.