Question

Chloroquine contains chloro group at _____ position.

• A. 4th
• B. 5th
• C. 6th
• D. 7th

Hint:

Chloroquine is a 7-chloro-4-aminoquinoline.

Answer 1

The Correct Option is D

Step 1: Concept
Chloroquine is a 4-aminoquinoline derivative used primarily as an antimalarial drug.

Step 2: Meaning
Its structure features a quinoline ring system with specific substitutions at various positions to ensure efficacy.

Step 3: Analysis
In the chloroquine molecule, the side chain is attached at the 4th position of the quinoline ring, and a chlorine atom is substituted at the 7th position.

Step 4: Conclusion
Thus, according to standard chemical numbering, the chloro group is located at the 7th position.

Final Answer: (D)