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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
Which concept best explains that $o-$nitrophenol is more volatile than $p-$nitrophenol
  • A
    Resonance
  • B
    Hyperconjugation
  • ✓
    Hydrogen bonding
  • D
    Steric hindrence
✓

Answer

Correct option: C.
Hydrogen bonding
(c) $o-$Nitrophenol has intramolecular hydrogen bonding but $p-$Nitrophenol has intermolecular hydrogen bonding so boiling point of $p-$Nitrophenol is more than $o-$Nitrophenol.

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