Chemical Bonding And Molecular Structure Question 269

Question: Which concept best explains that o-nitrophenol is more volatile than p-nitrophenol

[AIIMS 1980, 82; Kurukshetra CEE 1998; MP PET 2002]

Options:

A) Resonance

B) Hyperconjugation

C) Hydrogen bonding

D) Steric hindrence

Show Answer

Answer:

Correct Answer: C

Solution:

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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