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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

H 2 S e has higher boiling point than H 2 S . This is best explained by

Options

  1. AHigher extent of hydrogen bonding in H 2 S e
  2. BHigher polarity of H 2 S
  3. CHigher polarity of H 2 S e
  4. DHigher dispersion forces in H 2 S e due to its higher molecular weight.

Correct answer

D. Higher dispersion forces in H 2 S e due to its higher molecular weight.

Step-by-step solution

Both H 2 S e and H 2 S are polar but the former has higher dispersion forces due to its higher molecular weight and hence the higher boiling point.

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