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
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
Answer: Option D
:
D
Option:(d)
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:
D
Option:(d)
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