Question

Which of the following shows nitrogen with its increasing order of oxidation number?

• A. NO < N₂O < NO₂ < NO₃⁻ < NH₄⁺
• B. NH₄⁺ < N₂O < NO < NO₂⁻ < NO
• C. NH₄⁺ < N₂O < NO < NO₂ < NO₃⁻
• D. NH₄⁺ < NO < N₂O < NO₂ < NO₃⁻

Hint:

Always calculate oxidation number explicitly for polyatomic species.

Answer 1

The Correct Option is C

Oxidation numbers of nitrogen: NH₄⁺(-3), N₂O(+1), NO(+2), NO₂(+4), NO₃⁻ (+5) Thus increasing order is option (C).