Question

Assertion: In an electrochemical cell anode and cathode are respectively negative and positive electrodes.
Reason: At anode the oxidation takes place and at cathode the reduction takes place.
A.Both assertion and reason are correct and reason is the correct explanation for assertion.
B.Both assertion and reason are correct but the reason is not the correct explanation for the assertion.
C.Assertion is correct but the reason is incorrect.
D.Both the assertion and reason are incorrect.

Answer 1

Hint: When the process of the oxidation or the reduction occur simultaneously so that reaction is called the redox reaction. So we can say that the oxidation occurs at the one half and reduction occurs at the other half and we will see where in the answer.

Complete step by step answer:
In electrochemistry we generally found that the electrons flow from one chemical substance to another and this is possible only either through the process of the oxidation or the reduction. Now we will discuss what will happen when these two reactions occur simultaneously so that reaction is called the redox reaction. Moreover we can say that the reductant is a substance that loses the electrons and is oxidised in the process. Further talking about the oxidant we come to know that the oxidant is the species that gains electrons and is reduced in the process.as we can here see that to have reduction without the oxidation is not possible therefore the two reactions take place in the two different halves in the cell. So we can say that the oxidation occurs at the one half and reduction occurs at the other half.we can further say that the In an electrochemical cell anode and cathode are respectively negative and positive electrodes. Also we found that when the electrons flow in the cell they flow and At anode the oxidation takes place and at cathode the reduction takes place.From this we can conclude that the assertion is correct and also the reason is also correct and reason is the correct explanation for assertion.
Hence, the correct option is A.

Note:
We should note here that the cell we use daily is the best example of the electrochemical cell and further battery is also the same thing but contains the parallel or series arrangement of the cell.