Which of the two `H_2O` or `H_2S` has higher boiling point ? Explain.

Explanation

`H_2O` has higher boiling point than `H_2 S` . In `H_2O` , hydrogen is bonded to electronegative element oxygen and, therefore, it can form hydrogen bonds. As a result, water exists as associated molecules and therefore, exists as a liquid

On the other hand, `H_2 S` has negligible tendency to form hydrogen bonding because of low electronegativity of S. The molecules are, therefore, held up by only van dar Waals. forces. Therefore, it exists as gas. Thus, water has higher boiling point than `H_2S` .