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Q.
In nitrogen family, the H-M-H bond angle in the hydrides gradually becomes closer to 90$^\circ$ on goingfrom N to Sb. This shows that gradually
The p-Block Elements - Part2
Solution:
In nitrogen family the H-M-H bond angle in hydrides gradually becomes closer to 90$^{\circ}$ on going from N to Sb because almost pure p-orbitals are used for M-H bonding