NTA Abhyas JEE Main2020ChemistryRedox ReactionsPractice
A redox reaction always involves
Options
- AA change in oxidation number.
- BA change in phase.
- CThe transfer of protons.
- DThe formation of ions.
Correct answer
A. A change in oxidation number.
Step-by-step solution
It is a fact that a redox reaction always involves change in oxidation number.