Question

Arrange the hydrides of group 15 on the basis of bond angle

Answer 1

Answer:

written below-

Explanation:

NH3>PH3>AsH3>SbH3>BiH3

In all the hydrides of Group-15 elements, the central atom is surrounded by four electron pairs, three bond pairs and one lone pair.

As we move down the group, the size of the central atom increases while its electronegativity decreases.

As a result, the force of repulsion between bond pairs decreases and therefore the bond angle also decreases.

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