JEE Main 2002 Chemistry question

In which of the following species the interatomic bond angle is ?

(1), Correct
(2),
(3),
(4),

Answer: (1)

Solution

The tetrahedral angle occurs in species with four bond pairs and no lone pair, such as and . in option (1) is a regular tetrahedron; is but its lone pair compresses the angle to about , close to the tetrahedral value. Option (2)

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Question ID VK-037917