P-Block Elements Ques 569

Question: In nitrogen family, the H-M-H bond angle in the hydrides gradually becomes closer to $ 90{}^\circ $ on going from N to Sb. This shows that gradually

Options:

A) the basic strength of the hydrides increases.

B) almost pure p-orbitals are used for M-H bonding.

C) the bond energies of M-H bonds increases.

D) the bond pairs of electrons become nearer to the central atom.

Show Answer

Answer:

Correct Answer: B

Solution:

With the decrease in the electronegativity of central atom the bond angle decreases



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