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AP EAMCET202123 Aug 2021Morning ShiftChemistryChemical Bonding and Molecular StructureActual

Identify the correct sequence with respect to the strength of hydrogen bonding among the following.

Options

  1. AH ₂ O ₂> H ₂ O > HF > H ₂ ~S
  2. BH ₂ O > HF > H ₂ O ₂> H ₂ ~S
  3. CH ₂ O > HF > H ₂ ~S > H ₂ O ₂
  4. DH ₂ O > HF > H ₂ O ₂> H ₂ ~S

Correct answer

A. H ₂ O ₂> H ₂ O > HF > H ₂ ~S

Step-by-step solution

Strength of hydrogen bonding depends on the electronegativity of atom. In H ₂ O ₂ , number of donor atoms for hydrogen bonding is more as compared to H ₂ O . H ₂ O has more donor atoms than HF for hydrogen bonding. So, the correct order of strength of hydrogen bonding is H ₂ O ₂> H ₂ O > HF > H ₂ ~S

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