Question

Assertion: Oxidation involves loss of electrons and reduction involves gain of electrons.
Reason: The overall reaction in which oxidation and reduction occurs simultaneously is called redox reaction.
A.Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B.Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C.Assertion is correct but reason is incorrect
D.Assertion is incorrect but reason is correct

Answer 1

There are different types of reactions. One of them is a redox reaction. The term, ‘redox’ is a combination of the words ‘oxidation’ and ‘reduction’. You can solve this question by remembering this.

Complete step-by-step answer:
In oxidation there is an increase in oxidation number. This increase is only possible when there is loss of electrons.
In reduction there is a decrease in oxidation number and this happens only due to gain of electrons. Hence the assertion that oxidation involves loss of electron and reduction involves gain of electrons is correct.
The pair of oxidizing and reducing agents that are involved in a particular reaction is called redox reaction. Hence the reason that the overall reaction in which oxidation and reduction occurs simultaneously is called redox reaction is also correct.
But the reason is not the correct explanation should be that oxidation involves increase in oxidation number and reduction involves decrease in oxidation number.

Therefore, the correct answer is option B that is both assertion and reason are correct but reason is not the correct explanation for assertion.

Note: It is important to note that compound undergoing oxidation is called reducing agent and the compound undergoing reduction is called oxidizing agent.
In redox reaction there is simultaneous loss of electron by one compound and gain of electron by another compound.