The correct order of strength of H-bond in the following compound :-

(1) H2O > H2O2 > HF > H2S

(2) HF >  H2O2 > H2O > H2S

(3) HF > H2O > H2S > H2O2

(4) HF > H2O > H2O2 > H2S

Concept Videos :-

#6 | Hydrogen Bonding

Concept Questions :-

Hydrogen Bonding

The boiling point of water is $$100 ∘C100 ∘C100 ∘C$$ while that of hydrogen peroxide is about $$150 ∘C150 ∘C150 ∘C$$. Here is a list of factors that might contribute to this difference (adapted from source)

• Stronger dispersion forces in $$H2O2$$ (larger molar mass)
• Higher dipole moment in $$H2O2$$
• More hydrogen bond acceptors in $$H2O2$$

As for the number of hydrogen bonds, if we look at the structure of ice, each hydrogen atom of water is involved in a hydrogen bond (each oxygen is involved in two). But peroxide has a larger number of hydrogen bonds.

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