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Question

Combustion of coal and petroleum in absence of oxygen produces which of the following gases instead of carbon dioxide?


A

Sulphur dioxide

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B

Nitrous oxide

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C

Carbon monoxide

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D

Nitrogen peroxide

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Solution

The correct option is C

Carbon monoxide


The correct answer is option C:

Explanation of the correct option:

  1. Coal and petroleum are carbon compounds.
  2. On combustion, in presence of oxygen, they form carbon dioxide gas.
  3. However, if combustion occurs in absence of oxygen, carbon monoxide is formed.

Final answer: Hence, the combustion of coal and petroleum in absence of oxygen produces carbon monoxide gas.


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