Q. Browning of paper in old books is caused by

  • (A) frequent use
  • (B) collection of dust
  • (C) lack of aeration
  • (D) oxidation of cellulose
✅ Correct Answer: (D) oxidation of cellulose

Published by Ram Sharma ⭐ 193.88K Points at 25-Mar-2022 10:41 pm in General Awareness

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