Question

Assertion: o-Nitrophenol is less soluble in water than the m- and p-isomers.

Reason: m- and p- Nitrophenols exist as associated molecules.

विकल्प

• Assertion and reason both are correct and reason is correct explanation of assertion.

• Assertion and reason both are wrong statements.

• Assertion is correct statement but reason is wrong statement.

• Assertion is wrong statement but reason is correct statement.

• Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Answer 1

Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Explanation:

In o-nitrophenol there is intramolecular H-bonding.

Thus, o-nitrophenol does not form H-bond with \[\ce{H2O}\] but m-nitrophenol and p-nitrophenol form H-bonds with \[\ce{H2O}\]. Also, due to intermolecular H-bonding m-nitrophenol and p-nitrophenol exist as associated molecules.