What is the correct chemical form of nitrogen in the atmosphere?
Answer and explanation
Correct answer: N₂
Molecular nitrogen in the atmosphere exists mainly as the diatomic molecule N₂, so option A is correct. Nitrogen makes up approximately 78% of dry air. NO₂ is a reactive nitrogen oxide and air pollutant, N₂O is a trace greenhouse gas, and NH₃ is ammonia. These substances contain nitrogen but are not the normal dominant form of atmospheric nitrogen.
Frequently asked questions
What is the correct answer to this question?
N₂
Why is this the correct answer?
Molecular nitrogen in the atmosphere exists mainly as the diatomic molecule N₂, so option A is correct. Nitrogen makes up approximately 78% of dry air. NO₂ is a reactive nitrogen oxide and air pollutant, N₂O is a trace greenhouse gas, and NH₃ is ammonia. These substances contain nitrogen but are not the normal dominant form of atmospheric nitrogen.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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