Question

Assertion:
Anode is the electrode at which oxidation occurs and cathode is the electrode at which reduction occurs.
Reason:
Anode and cathode in electrochemical cells and electrolytic cells have opposite polarity.
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

In the electrochemical cells, oxidation takes place at the anode and reduction takes place at the cathode. The chemical reaction is employed in the electrochemical cell to generate electrical energy.

Complete step-by-step solution:
We know that, in an electrochemical cell, the electrode in which the oxidation takes place is an anode and the electrode in which reduction takes place is the cathode. In the electrochemical cell, anode has a negative charge, and the cathode has a positive charge and the electrolytic cell anode has a positive charge and the cathode has a negative charge. Hence, anode and the cathode in the electrochemical cells and electrolytic cells have opposite polarity.
From this, we can conclude that both assertion and reason are correct and reason is the correct explanation for assertion.

Therefore, out of the given four options, A is the correct option and B, C and D are incorrect options.

Additional information:
We know that there are two types of electrolytic cells. These are galvanic cells or also called voltaic cells and electrolytic cells. The most common example of a galvanic cell is a household battery. An electrolytic cell is most commonly used in the process of electroplating.

Note: An electrolytic cell is defined as a device that helps in the generation of electrical energy by using chemical reaction. It consists of two electrodes which are anode and cathode. Anode is negatively charged and the cathode is positively charged.