Why is the presence of oxygen in the atmosphere necessary for combustion?
Answer and explanation
Correct answer: Because oxygen supports combustion
Combustion is a rapid oxidation reaction in which a fuel reacts with oxygen and releases heat, often with light. Thus, oxygen is a necessary supporter of burning, although it is not itself the fuel. Option B is correct because removing or greatly reducing the oxygen supply can extinguish a flame. Water vapour does not explain combustion, oxygen is not an inert gas, and it is certainly not a dust particle. The fire triangle consists of fuel, oxygen and sufficient ignition temperature.
Frequently asked questions
What is the correct answer to this question?
Because oxygen supports combustion
Why is this the correct answer?
Combustion is a rapid oxidation reaction in which a fuel reacts with oxygen and releases heat, often with light. Thus, oxygen is a necessary supporter of burning, although it is not itself the fuel. Option B is correct because removing or greatly reducing the oxygen supply can extinguish a flame. Water vapour does not explain combustion, oxygen is not an inert gas, and it is certainly not a dust particle. The fire triangle consists of fuel, oxygen and sufficient ignition temperature.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
