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Dharm

· started a discussion

· 1 Months ago

pl (Question: 225001.0 )

plz check ur explanation...and rectify it...(D)

Question:
What causes the browning of paper in old books?
Options:
A) frequent use 
B) lack of aeration 
C) accumulation of dust 
D) oxidation of cellulose
Solution:
Ans:(d) 

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

We fixed it. required answer is option D.
Foxing is an age-related process of deterioration that causes spots and browning on old paper documents such as books, postage stamps and certificates.foxing is caused by the effect on certain papers of the oxidation of iron, copper, or other substances in the pulp or rag from which the paper was made. It is possible that multiple factors are involved. High humidity may contribute to foxing.

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