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NEET2013ChemistryChemical Bonding and Molecular StructureActual

Dipole-induced dipole interactions are present in which of the following pairs?

Options

  1. AH ₂ O and alcohol
  2. BCl ₂ and CCl ₄
  3. CHCl and He atoms
  4. DSiF ₄ and He atoms

Correct answer

C. HCl and He atoms

Step-by-step solution

Dipole-induced dipole interaction are present in the pair in which the first species is polar and the other is non-polar. H ₂ O and alcohol both are polar molecules, so there exists dipole-dipole interactions in between them. Cl ₂ and CCl ₄ both are non-polar so there exists induced dipole-induced dipole interactions in between them. Similar is true for SiCl ₄ and He atoms pair. HCl is a polar molecule, whereas He atoms are non-polar, so in between them dipole-induced dipole interactions exist :

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