Question

Nitrosamines \( (R_2N - N = O) \) are soluble in water. On heating them with concentrated \( H_2SO_4 \), they give secondary amines. This reaction is called:

• A. Perkin reaction
• B. Sandmeyer’s reaction
• C. Fitting reaction
• D. Liebermann nitroso reaction

Hint:

The Liebermann nitroso reaction is a common method for converting nitrosamines into secondary amines under acidic conditions.

Answer 1

The Correct Option is D

Step 1: The reaction of nitrosamines with concentrated \( H_2SO_4 \) forms secondary amines and is classified as a nitroso reaction.
Step 2: The reaction follows the mechanism of the Liebermann nitroso reaction, which involves the formation of secondary amines.

Final Answer: \[ \boxed{\text{Liebermann nitroso reaction}} \]