DDT stands for

A. Diethyl-diphenyl-trichloromethane

B. Dichloro-diphenyl-trichloromethane

C. diphenyl-dichloro-trichloromethane

D. Dichloro-diphenyl-trichloroethane

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  18. Wax is a
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  21. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion…
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