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What is coke?

  1. It is a tough, porous and black substance
  2. It is the purest form of carbon
  3. It is used in the manufacturing of steel
  4. All of the above

Answer: All of the above

Long Answer:

A coke is a tough, porous and black substance. It is the pure form of carbon. It is used in manufacturing of steel and extraction of many metals.

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