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

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

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Chemical Process
Pick out the wrong statement. Iodine value of an oil or fat is

Independent of the type of oil, whether it is drying or non-drying
Helpful in findings its adulteration & its suitability for making soap
A measure of its unsaturation
The number of grams of iodine taken up by 100 gm of oil or fat

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