Chemical Process
Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Soda lime
Calcium perchlorate
Slaked lime
None of these

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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

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

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