Question

Assertion (A): A mixture of o-nitrophenol and p-nitrophenol can be separated by steam distillation.
Reason (R): o-nitrophenol is steam volatile due to intermolecular hydrogen bonding.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

When dealing with separation methods, consider the physical properties like volatility and boiling points to determine the appropriate technique.

Answer 1

The Correct Option is A

o-nitrophenol's volatility, enhanced by hydrogen bonding, allows its separation from p-nitrophenol via steam distillation. The statement is accurate, and the explanation is sound; intermolecular hydrogen bonding in o-nitrophenol increases its steam volatility.