Match List I (Drugs / Chemicals) with List II (Their uses) and select the correct answer using the codes given below the Lists: List I I. Atropine II. Ether III. Nitro-glycerine IV. Pyrethrin List II A) Local anaesthesia B) Heart trouble C) Dilation of pupil D) Mosquito control Codes:
- AI-A, II-C, III-B, IV-D
- BI-A, II-C, III-D, IV-B
- CI-C, II-A, III-D, IV-B
- DI-C, II-A, III-B, IV-DCorrect
Explanation
The correct option is D because it correctly matches each chemical with its primary medical or household use as follows:
I. Atropine matches with C (Dilation of pupil): Atropine is an anticholinergic drug used by ophthalmologists to dilate the pupils during eye examinations.
II. Ether matches with A (Local anaesthesia): Ether was one of the earliest chemicals used as an inhalation anesthetic to induce a lack of sensation during surgical procedures.
III. Nitro-glycerine matches with B (Heart trouble): Nitro-glycerine acts as a vasodilator and is commonly used to treat angina pectoris (chest pain) by improving blood flow to the heart.
IV. Pyrethrin matches with D (Mosquito control): Pyrethrins are organic compounds derived from chrysanthemum flowers and are widely used as active ingredients in insecticides and mosquito coils.
Therefore, the correct sequence is I-C, II-A, III-B, IV-D.
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