Question

(c) Arrange H20, H2S, H Se and H, Te in the
increasing order of bond angle, giving
the proper explanation for this trend.​

Answer 1

Answer:

H2Te<H2Se<H2S<H2O

Explanation:

All the molecules have sp3 hybridization and due to presence of two lone pair, all get distorted tetrahedral geometry i.e. bent shape.

All the central atoms belongs to group 16 and down the group atomic size increases and elctronegativity decreases. Due to this reason bond length increases from H-O to H-Te and also lone pair (lp) - bond pair (bp) repulsion increases from H2O to H2Te. Thus bond angle decreases.