Statement-I :Boiling point of O-nitro phenol is less than that of p-nitro phenol
Statement-II: Hydrogen bonding is stronger in HF than in H₂O

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I and II are incorrect

I is correct, II is incorrect

I and II are correct

I is incorrect, II is correct

answer is A.

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Detailed Solution

o−nitrophenol has intramolecular hydrogen bonding p−nitrophenol has intermolecular hydrogen bonding. Intermolecular hydrogen bonding leads to a molecular association. Therefore o−nitrophenol has a lower boiling point than p− nitrophenol.

Hydrogen fluoride has stronger hydrogen bonding than water. The electronegativity of Fluorine atom is more than that of Oxygen atom which leads to stronger hydrogen bonding in hydrogen fluoride.

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