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Question

The naturally occuring amorphous form of carbon is:

A
Coal
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B
Soot
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C
Gas carbon
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D
Coke
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Solution

The correct option is A Coal
Coal is formed by the slow decomposition of plants under the influence of pressure and heat in a limited supply of air. It is the only naturally occurring amorphous form of carbon.

Coke, gas carbon and soot are man-made and are obtained by the process of destructive distillation.

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