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  9. Q66

UPPSC PCS 2023 · Question 66 of 150

Which among the following is a constituent of natural silk?

General Knowledge

  1. APhosphorus
  2. BPotassium
  3. CNitrogenCorrect
  4. DMagnesium

Answer: C. Nitrogen

Explanation

Silk fibers are composed of fibroin. It is an insoluble protein.

Source: edurev.in solved-paper compilation (OSWAAL 15-Years UPPSC Prelims Solved Paper)

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