Question

Which of the following are products of combustion of a fuel

• A. Oxygen
• B. Carbon dioxide
• C. Water
• D. Nitrogen

Answer 1

Answer: (B), (C)

Water

Explanation for the correct option

• Combustion is a process in which substances burn to produce heat and light and produce carbon dioxide and water vapor.
• $\mathrm{Fuel}+{\mathrm{O}}_2\to {\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}$
• Fuel Oxygen Carbon dioxide Water

Option B Carbon dioxide :

• The burning of fuel is a combustible reaction in which there is a release of large energy and the formation of carbon dioxide and water vapor.

Option C water vapors

• Water vapors are also formed by burning organic substances like petrol, paper, etc.

Explanation for incorrect options

Option A Oxygen

• Oxygen is the substance that is used for the burning of substances.

Option D Nitrogen

• Nitrogen is an inorganic substance while fuel is an organic substance that contains mostly carbon and hydrogen and the products released are carbon compounds.

Thus both options B and C are correct.