Match List I with List II
| List I | List II |
| A. Serotonin | I. Antihistamine |
| B. Phenelzine | II. Antibiotic |
| C. Terfenadine | III. Tranquilizer |
| D. Vancomycin | IV. Anti-depressant drug |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-III, B-IV, C-I, D-II
(A) Serotonin — This matches (III) Tranquilizer. Valium and serotonin are listed among the substances used as tranquilizers.
(B) Phenelzine — This matches (IV) Anti-depressant drug. Iproniazid and phenelzine inhibit the enzymes that break down noradrenaline and so counter depression.
(C) Terfenadine — This matches (I) Antihistamine. Terfenadine (Seldane) and brompheniramine compete with histamine for its receptor sites.
(D) Vancomycin — This matches (II) Antibiotic. Vancomycin and ofloxacin are broad spectrum antibiotics.
Shortcut: (B)-(IV) is true only in Option (3).
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic is not there in the latest NCERT book (2026-27), and it is also out of the CUET 2026 syllabus.