The bond angle in PH_3 is:

JEE Main Chemistry question

The bond angle in is:

(A)Much lesser than in Correct
(B)Equal to that in
(C)Much greater than in
(D)Slightly more than in

Answer: (A)

Solution

Bond angles in Group 15 hydrides decrease down the group: NH_3(107^\circ) > PH_3(93.5^\circ) > AsH_3 > SbH_3, as the central atom's electronegativity falls and (by Bent's rule) the lone pair draws

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Question ID VK-133756