STANDARDChemistry-Physical Properties of Organic Compounds
STANDARD Chemistry Boiling Points Assertion Reason Question
Type: Assertion Reason-conceptual-Medium
Assertion: Boiling point of p-nitrophenol is greater than that of o-nitrophenol. Reason: There is intramolecular hydrogen bonding in p-nitrophenol and intermolecular hydrogen bonding in o-nitrophenol.
A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true but reason is not the correct explanation of assertion.
C
If assertion is true but reason is false.
D
If both assertion and reason are false.
Correct Answer
Option C
Detailed Explanation
There is intermolecular hydrogen bonding in p-nitrophenol and intramolecular hydrogen bonding in o-nitrophenol. As intramolecular hydrogen bonding in o-nitrophenol prevents further association, it has lower boiling point than p-nitrophenol.
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