Chemical Process
Fumigant insecticides

Are absorbed throughout the plant
None of these
Kill insects, when they eat it
Emit poisonous vapour

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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
All of these
Tar neutralises the residual acids present in pitch
Its calorific value is very less

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

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

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