Why are oxidation and reduction understood together in a redox reaction?
Answer and explanation
Correct answer: What one substance loses, another substance can gain.
A redox reaction involves transfer of electrons between reacting species. When one substance loses electrons, it is oxidised; another substance must accept those electrons and is reduced. Thus the two processes occur simultaneously and are understood together. Option A expresses this conservation and transfer of electrons. Options B, C and D are incorrect because redox reactions involve chemical changes, not merely colour or physical changes.
Frequently asked questions
What is the correct answer to this question?
What one substance loses, another substance can gain.
Why is this the correct answer?
A redox reaction involves transfer of electrons between reacting species. When one substance loses electrons, it is oxidised; another substance must accept those electrons and is reduced. Thus the two processes occur simultaneously and are understood together. Option A expresses this conservation and transfer of electrons. Options B, C and D are incorrect because redox reactions involve chemical changes, not merely colour or physical changes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
