Chemical Process
Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Trichloromethane
Tetrachloroethane
Tetrachloromethane
Trichloroethane

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Chemical Process
Pick out the wrong statement pertaining to the soap manufacture.

Transparent soaps are made by cold process
Both laundary as well as toilet soaps are manufactured by hot process
Colourless rosin is used in the manufacture of laundary soaps
Organic pigments are used as colouring materials in the soap manufacture

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