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Question

X is a porous black substance.
It is pure form of carbon.
It is used in the manufacture of steel.
Identify X.

A
Coal tar
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B
Bitumen
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C
Coke
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D
Paraffin
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Solution

The correct option is C Coke
Coke is produced by the destructive distillation of coal. It is a tough, porous and black substance. It is almost pure form of carbon. Coke is used in the manufacture of steel and in the extraction of many metals.

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