In a combustion reaction fuel generally burns in the presence of which gas?
Answer and explanation
Correct answer: Oxygen
Combustion is a chemical reaction in which a fuel reacts rapidly with oxygen and releases heat, often with light. Therefore oxygen is the gas generally required to support burning. Nitrogen is abundant in air but does not normally support combustion, while helium is inert and chlorine is not the usual gas identified as the supporter of ordinary fuel burning. Thus option B is the unambiguous answer.
Frequently asked questions
What is the correct answer to this question?
Oxygen
Why is this the correct answer?
Combustion is a chemical reaction in which a fuel reacts rapidly with oxygen and releases heat, often with light. Therefore oxygen is the gas generally required to support burning. Nitrogen is abundant in air but does not normally support combustion, while helium is inert and chlorine is not the usual gas identified as the supporter of ordinary fuel burning. Thus option B is the unambiguous answer.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
