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  4. During steam distillation of a mixture of o-nitrophenol and p- nitrophenol

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Q. During steam distillation of a mixture of o-nitrophenol and p- nitrophenol

Organic Chemistry – Some Basic Principles and Techniques

Solution:

Only o-nitrophenol is capable of forming intramolecular H-bonding (chelation) which leads to its lower b.p. (less than $100^{\circ}C)$ and also lower solubility in water (steam)