The class of drug to which chlordiazepoxide with above structure belongs is :

Solution

Chemistry ma’am · 3 steps

Spot the benzodiazepine ring: a benzene fused to a seven-membered ring with two N marks a tranquilizer.

1. Read the structure. A benzene ring carrying Cl is fused to a seven-membered ring that contains two nitrogen atoms. This fused system is called a 1,4-benzodiazepine, and the drug name, chlor-diazep-oxide, carries the same clue.
2. Link structure to class. Benzodiazepines act on the central nervous system. They reduce anxiety and calm the patient, which is what tranquilizers do. Chlordiazepoxide and its close relative diazepam (valium) are both standard NCERT examples of tranquilizers.

   Class	What it does	Typical examples
   Antacid	neutralises or cuts excess stomach acid	Mg(OH)₂, ranitidine, cimetidine
   Analgesic	relieves pain	aspirin, paracetamol, morphine
   Tranquilizer	relieves stress and anxiety, calms the mind	chlordiazepoxide, meprobamate, valium, barbiturates
   Antibiotic	kills or stops the growth of microbes	penicillin, chloramphenicol

3. So. Chlordiazepoxide is a tranquilizer, option (c).

The idea to keep. Learn the NCERT drug lists by class. Benzodiazepines (chlordiazepoxide, valium), meprobamate and barbiturates are all tranquilizers that calm anxiety; they do not relieve pain.

Answer from the NTA final answer key. Solution by PrepWiser.