8th Class Science Coal and Petroleum Question Bank Coal and Petroleum Summative Subjective Problems

  • question_answer
    What is coke? Write its uses.

    Answer:

    Coke is a tough porous and black substance. It is almost purest form of carbon. It is formed by heating coal in the absence of air. Uses: (i) It is used in manufacture of steel. (ii) It is used in the extraction of metals.


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