Pick out the wrong statement pertaining to the soap manufacture?
Correct answer: D. Transparent soaps are made by cold process
- A. Colourless rosin is used in the manufacture of laundry soaps
- B. Organic pigments are used as colouring materials in the soap manufacture
- C. Both laundry as well as toilet soaps are manufactured by hot process
- D. Transparent soaps are made by cold process
Explanation
Transparent soaps are generally produced by the hot process, followed by treatment with alcohol, glycerol or sugar to give transparency. The cold process is used mainly for simpler soaps, so statement a is wrong.
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