Identify the Environmental friendly method among the following: – McqOptions

MCQOPTIONS

1.	Identify the Environmental friendly method among the following:
A.	Usage of poly chlorinated biphenyls as cleansing solvent
B.	Usage of chlorine for bleaching paper
C.	Usage of tetra chloro ethane for dry cleaning
D.	Usage of H2O2 for bleaching cloths.
Answer» E.

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