2. Questions Bank
  3. 8th Class
  4. Science
  5. Coal and Petroleum

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

  • question_answer
    Fill in the following blanks: (i) The process of separating the various constituents/ fractions of petroleum is known as ___. (ii)    Many useful substances are obtained from petroleum and natural gas. These are termed as _____.

    Answer:

    (i) Refining                          (ii) Petrochemicals


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