Describe the process of refining of coal. why is it done in the absence of air?
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Describe the process of refining of coal. why is it done in the absence of air?
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Answer:
The strong heating of coal in the absence of air is called destructive distillation of coal. If coal is heated in the presence of air,then coal burns to produce mainly carbon dioxide gas and no other useful products were obtained. The process breaks up or 'cracks' large molecules.
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