Why is the presence of oxygen in air necessary for combustion?
Answer and explanation
Correct answer: It supports the burning process
Combustion is a chemical reaction in which a fuel reacts with an oxidising substance and releases heat, often with light. In ordinary atmospheric burning, oxygen acts as the principal oxidiser that allows the reaction to continue. Removing or greatly reducing oxygen extinguishes a flame, although oxygen itself is not the fuel. Options B, C, and D describe processes unrelated to the essential role of oxygen in combustion, so A is correct.
Frequently asked questions
What is the correct answer to this question?
It supports the burning process
Why is this the correct answer?
Combustion is a chemical reaction in which a fuel reacts with an oxidising substance and releases heat, often with light. In ordinary atmospheric burning, oxygen acts as the principal oxidiser that allows the reaction to continue. Removing or greatly reducing oxygen extinguishes a flame, although oxygen itself is not the fuel. Options B, C, and D describe processes unrelated to the essential role of oxygen in combustion, so A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
