Q24 / 150 · MHT CET 2026 (13 April Shift 2) · Chemistry
Which of the following statements is correct regarding the cathode of electrochemical cell ?
- AOxidation occurs at the cathode
- Correct answerBReduction occurs at cathode
- CUsually denoted by a negative sign
- DIs usually made up of non conducting material.
Solution
In any electrochemical cell, whether galvanic or electrolytic, reduction always takes place at the cathode.
Oxidation always takes place at the anode.
The cathode is made of a conducting material to allow the flow of electrons.
In a galvanic cell, the cathode is denoted by a positive sign, whereas in an electrolytic cell, it is denoted by a negative sign. Thus, the only universally correct statement is that reduction occurs at the cathode.
Answer: Reduction occurs at cathode
Oxidation always takes place at the anode.
The cathode is made of a conducting material to allow the flow of electrons.
In a galvanic cell, the cathode is denoted by a positive sign, whereas in an electrolytic cell, it is denoted by a negative sign. Thus, the only universally correct statement is that reduction occurs at the cathode.
Answer: Reduction occurs at cathode
Hence, the correct answer is option: 'B'.