Class VIII

When a candle is lighted, the wick:
  1. Vapourizes
  2. Absorbs liquid wax
  3. Burns with yellow flame
  4. None of the above are correct
Coal burns with
  1. Flame
  2. Only Glow
  3. Both flame and glow
  4. None of these
Burning of charcoal in a closed room will produce
  1. Carbon dioxide
  2. Nitrogen dioxide
  3. Carbon monoxide
  4. all of above
CNG and LPG are the examples of
  1. Solid fuels
  2. Liquid fuels
  3. Gaseous fuels
  4. They are not fuels
The products of combustion are
  1. Carbon dioxide and water
  2. Oxygen and water
  3. Only carbon dioxide
  4. Only oxygen
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