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Hydrocarbons — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrocarbons1 Mark
MCQ
Torsional strain in eclipsed conformations of a molecule is due to :
  • A
    Repulsion between the eclipsed carbons.
  • ✓
    Repulsion between aligned electron pairs of the eclipsed bond.
  • C
    Repulsions betwen aligned $'H\ ’.$
  • D
    Repulsions between $\ce{C-H}$ bonds of eclipsed conformation.
✓

Answer

Correct option: B.
Repulsion between aligned electron pairs of the eclipsed bond.
The eclipsed bonds are parallel to each other facing repulsions due to aligned electron pairs in the bonds.

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