Question

Assertion (A): Benzene diazonium salt is stable and can be easily stored.
Reason (R): Benzene diazonium chloride decomposes easily.

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

Hint:

Diazonium salts are generally unstable and are kept cold (0–5°C) to prevent decomposition.

Answer 1

The Correct Option is D

Step 1: Benzene diazonium chloride is not stable for long periods — it decomposes easily, especially at room temperature, releasing nitrogen gas. It must be used immediately or kept cold.
Step 2: Therefore, Assertion (A) is false.
Step 3: The Reason (R) is true because benzene diazonium chloride does indeed decompose readily, which is why it cannot be easily stored.