Question

The correct statement about (A), (B), (C) and (D) is: 

• A. (A), (B) and (C) are narcotic analgesics
• B. (B), (C) and (D) are tranquilizers
• C. (A) and (D) are tranquilizers
• D. (B) and (C) are tranquilizers

Hint:

Familiarize yourself with the structures of common drugs mentioned in the "Chemistry in Everyday Life" chapter, specifically Morphine (narcotic) and Diazepam/Valium (tranquilizer).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The question identifies specific pharmacological classes of given chemical structures.
Step 2: Detailed Explanation:
(A) Structure (A) is Morphine. Morphine is a classic narcotic analgesic used for severe pain relief.
(B) Structure (B) is Diazepam (Valium). It belongs to the class of benzodiazepines, which are tranquilizers used for anxiety and sleep disorders.
(C) Structure (C) is Serotonin (or a related derivative like Valium-like neurotransmitter components). In the context of medicinal chemistry textbooks (like NCERT), structures like Valium and Serotonin/derivatives are associated with tranquilizers or mood regulation.
(D) Structure (D) is Codeine. It is a derivative of morphine and is also classified as a narcotic analgesic.
Step 3: Final Answer:
Since (B) is Diazepam and (C) is related to neurological mood management, they are classified as tranquilizers. (A) and (D) are narcotic analgesics. Thus, option (D) is the only correct grouping.