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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
The relative strength of interionic/ intermolecular forces in decreasing order is
  • A
    ion-dipole > ion-ion > dipole-dipole
  • B
    dipole-dipole > ion-dipole > ion-ion
  • C
    ion-dipole > dipole-dipole > ion-ion
  • ✓
    ion-ion > ion-dipole > dipole-dipole
✓

Answer

Correct option: D.
ion-ion > ion-dipole > dipole-dipole
d
Interionic$/$ Intermolecular forces $\propto$ charge on the species

Ions are charged species whereas dipoles are partially charged.

$\therefore$ Ion-Ion $\,>\,$ Ion-dipole $\,>\,$ dipole-dipole

Hence, option $d$ is correct.

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