MHT CET202620 April 2026Morning ShiftChemistryRedox ReactionsActual
What is the difference in oxidation number of nitrogen when nitric acid is converted into nitrous oxide ?
Options
- A+1
- B+2
- C+4
- D+3
Correct answer
C. +4
Step-by-step solution
The chemical formula of nitric acid is HNO₃ . Let the oxidation state of nitrogen in HNO₃ be x . +1 + x + 3(-2) = 0 x = +5 The chemical formula of nitrous oxide is N₂O . Let the oxidation state of nitrogen in N₂O be y . 2y + (-2) = 0 y = +1 The difference in the oxidation number of nitrogen is 5 - 1 = 4 . Answer: +4