Q. Which of the following shows minimum bond angle?

A) $H_{2}O$
B) $H_{2}Se$
C) $H_{2}S$
D) $H_{2}Te$
Explanation

(d)
Hybride : ${\ \ \ \ \ \ \ H}_{2}O\ \ \ \ H_{2}S\ \ \ \ H_{2}Se\ \ \ \ \ \ H_{2}Te$
Bond angle : $104{^\circ}\ \ \ \ 92{^\circ}\ \ \ \ \ 91{^\circ}\ \ \ \ \ \ \ \ \ \ \ 90{^\circ}$
In all of the given species central atom is $sp^{3}$ hybridised. They have angular shape due to the presence of two lone pair of electron. The bond angle decreases with decrease in electronegativity therefore $H_{2}Te$ shows minimum bond angle.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.