Question

Which one of the options given correctly matches the alkaloids in Group I with their source plants in Group II?

• A. P–3; Q–1; R–4; S–2
• B. P–1; Q–3; R–4; S–2
• C. P–2; Q–1; R–3; S–4
• D. P–4; Q–2; R–1; S–3

Hint:

Cocaine → Coca; Caffeine → Cocoa/Coffee/Tea; Morphine → Poppy; Atropine → Nightshade (Belladonna). Always associate these hallmark alkaloids with their classical source plants.

Answer 1

The Correct Option is A

Step 1: Cocaine.
Cocaine is obtained from the Coca plant (Erythroxylum coca). \(⇒\) P–3.
Step 2: Caffeine.
Caffeine is the stimulant alkaloid in Cocoa, Coffee, and Tea. Here the correct match is Cocoa. \(⇒\) Q–1.
Step 3: Morphine.
Morphine is the famous opiate alkaloid from the Poppy plant (Papaver somniferum). \(⇒\) R–4.
Step 4: Atropine.
Atropine is a tropane alkaloid from Nightshade (Atropa belladonna). \(⇒\) S–2.
Combining all: P–3, Q–1, R–4, S–2. This corresponds to option (A).
Therefore, the correct answer is (A).