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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

Which of the following hydrogen bond is strongest in vapour phase?

Options

  1. AHF.........HF
  2. BHF...........HCl
  3. CHCl...........HCl
  4. DHI..........HF

Correct answer

D. HI..........HF

Step-by-step solution

atom which is associated with H should be more electronegative so positive charge ↑ on H -atom & atom which is lone pair donor should be less electronegative so, that it can donate lone pair

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