Question

Paper becomes brittle and yellow with age. Why?
1.The acid content in paper causes brittleness to develop
2.In the presence of visible light, photosensitized oxidation occurs
3.The ultra-violet component of sunlight causes photolysis of cellulose by direct cleavage of the cellulose polymer

• A. 1 and 2
• B. 2 and 3
• C. 1 and 3
• D. 1, 2 and 3

Answer 1

The correct option is D 1, 2 and 3

Option:(d)