Chemistry
Grade-8
Easy

Question

Out of the following, which fuel contains the largest percentage of hydrogen?

  1. Water-gas
  2. Producer gas
  3. Hydrocarbon
  4. Coal gas

hintHint:

Coal gas

The correct answer is: Coal gas


    Coal gas has 50% hydrogen.
    Hydrocarbon has 14% hydrogen.
    Producer gas has 12% hydrogen.
    Water gas has 11% hydrogen

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