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

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#6 | Hydrogen Bonding

Concept Questions :-

Hydrogen Bonding

 

    

The boiling point of water is 100 C100 C while that of hydrogen peroxide is about 150 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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