Question

In a
papes mill bleaching powder
not added white
pereparing
paper pulp, the paper obtained
was
yellowish brown in colour
what is the reason for this??
'​

Answer 1

Answer:

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. ... It has brown colored appearance due to the presence of residual lignin.

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