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Question

Which of the following explanations accounts for o-nitrophenol to be more volatile then p-nitrophenol?

A
Intermolecular hydrogen bonding
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B
Resonance
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C
Intramolecular hydrogen bonding
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D
Inductive effect
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Solution

The correct option is D Intramolecular hydrogen bonding
Ortho nitrophenol is more volatile than para nitrophenol because O-Nitrophenol has intramolecular hydrogen bonding whereas para nitrophenol has inter molecular H bonding and so boils relatively at higher temperature. So correct answer is oprion C.
1550187_1716868_ans_6ecd6d89810443bd952d90f6bdbf0b2a.PNG

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