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Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure1 Mark
MCQ
Why do the deviations occur from idealized shape of $\ce{H_2O}$ and $\ce{NH_3}$ molecules?
  • A
    Same hybridisation.
  • ✓
    Different hybridisation.
  • C
    Repulsive effect.
  • D
    None of these.
✓

Answer

Correct option: B.
Different hybridisation.
Greater repulsion between lone pairs of electrons as compared to the lone pair $-$ bond pair and bond pair $-$ bond pair repulsions. These repulsive effects result in deviations from idealised shapes and alterations in bond angles in the molecules.

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