Chemical Process
Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Hydrochloric acid
Sulphuric acid
Ammonium sulphate
Nitric acid

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

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

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