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

JEE Main Chemistry question

Which concept best explains that -nitrophenol is more volatile than -nitrophenol?

(A)Resonance
(B)Steric hindrance
(C)Hydrogen bondCorrect
(D)Hyperconjugation

Answer: (C)

Solution

In -nitrophenol, the OH and groups are close enough to form a strong intramolecular hydrogen bond, which reduces intermolecular association and makes the compound more

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Question ID VK-156290