Why does water show a high boiling point compared to hydrogen sulphide? Give reasons for your answer.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) Water shows a high boiling point compared to hydrogen sulphide due to the high electronegativity of oxygen $(EN = 3.5)$. Water undergoes extensive $H$-bonding,as a result of which water exists as associated molecules.
To break these hydrogen bonds,a large amount of energy is required; so,the boiling point of $H_2O$ is high. In contrast,due to the lower electronegativity of $S$,hydrogen sulphide does not undergo hydrogen bonding. $H_2S$ exists as discrete molecules and hence its boiling point is much lower than that of $H_2O$. That is why $H_2S$ is a gas at room temperature.

Explore More

Similar Questions

The correct statement/s about Hydrogen bonding is/are:
$A$. Hydrogen bonding exists when $H$ is covalently bonded to a highly electronegative atom.
$B$. Intermolecular $H$ bonding is present in $o$-nitrophenol.
$C$. Intramolecular $H$ bonding is present in $HF$.
$D$. The magnitude of $H$ bonding depends on the physical state of the compound.
$E$. $H$-bonding has a powerful effect on the structure and properties of compounds.
Choose the correct answer from the options given below:

The hydrogen bond is not present in

The correct order of boiling point in the following compounds is

The low density of ice compared to water is due to

The variation of the boiling points of the hydrogen halides is in the order $HF > HI > HBr > HCl$. What explains the higher boiling point of hydrogen fluoride?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo