Identify the substance which is tough, porous and black. It is almost a pure form of carbon.

Crude oil

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Coke

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Coal tar

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Coal gas

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Solution

The correct option is B Coke
Coke is a tough, porous and black substance. It is almost a pure form of carbon. It is used in the manufacture of steel and also in the extraction of many metals.

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Write whether the following statement is true or false:

‘Coke is a tough, porous and black substance. It is an almost pure form of carbon.’

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