The decreasing values of bond angles from NH_3 (107°) to SbH_3 (91°) down group 15 of the periodic table is due to [AIEEE 2006]

JEE Main Chemistry question

The decreasing values of bond angles from () to () down group 15 of the periodic table is due to [AIEEE 2006]

(A)Increasing bp–bp repulsion
(B)Increasing -orbital character in bonding orbitalsCorrect
(C)Decreasing lp–bp repulsion
(D)Decreasing electronegativity

Answer: (B)

Solution

Going down group 15, the central atom's electronegativity falls and its size increases, so the central atom uses orbitals with progressively less -character (more pure -character) for bonding, while the lone pair occupies an orbital of higher

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-145616