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Coal and Petroleum — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceCoal and Petroleum1 Mark
MCQ
A How is coke superior than coal as a fuel?
  • A
    Coal is a mineral and burns releasing smoke while coke is a residue.
  • B
    Coal is an impure form of carbon, while coke is a pure form of carbon.
  • C
    Only coal consists of atoms of carbon, hydrogen, oxygen and sulphur while coke mainly consists of carbon.
  • ✓
    All of the above.
✓

Answer

Correct option: D.
All of the above.
Coke is almost a pure form of carbon, it is a good fuel and burns without smoke. While coal is an impure form of carbon and burns releasing smoke.

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