Chemical Process
Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop
Its calorific value is very less
Tar neutralises the residual acids present in pitch
All of these

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

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

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