Question

in a paper mill bleaching powder was not added while preparing paper pulp, the paper obtained was yellowish brown in colour. what is the reason for this ?


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Answer 1

Answer:

Because bleaching powder makes the paper white in colour. here bleaching powder is not added so it makes yellowish brown

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Answer 2

Answer:

Because bleaching powder makes the paper white in colour. here bleaching powder is not added so it makes yellowish brown . In a paper mill, if bleaching powder is not added in the process of paper making, then the paper will look yellowish brown in color because of the presence of traces of residual lignin