Q. At room temperature, $H_{2}O$ is liquid while $H_{2}S$ is a gas. The reason is

A) Electronegativity of O is greater than S
B) Difference in the bond angles of both the molecules
C) Association takes place in $H_{2}O$ due to H-bonding while no H-bonding in $H_{2}S$
D) O and S belong to different periods
Explanation

(c)
$H_{2}O$ contain hydrogen bond while no hydrogen bonding is present in $H_{2}S$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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