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 and 2

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2 and 3

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1 and 3

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1, 2 and 3

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Solution

The correct option is D 1, 2 and 3
Option:(d)

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