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Quiz: UP PCS Prelims Mock Tests – March 2026 | Test 1

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Question 16 of 30

UP PCS Prelims Mock Tests – March 2026 | Test 1

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With reference to Electrolysis, consider the following statements:

1. Oxidation occurs at the anode.
2. Reduction occurs at the cathode.
3. In an electrolytic cell, the anode is negatively charged.

Which of the statements given above is/are correct?

A) 1 and 2 only

B) 2 and 3 only

C) 1 only

D) 1, 2 and 3

You can attempt the question by selecting an option, or click "Show Answer" to see the correct answer directly.

Correct Answer: A

Explanation

In electrolysis, oxidation always occurs at the anode and reduction at the cathode.
However, in an electrolytic cell, the anode is positively charged because it is connected to the positive terminal of the external power supply.

Key Fact(s)

Electrolysis is a non-spontaneous redox process driven by external electrical energy.
It is widely used in electroplating, extraction of metals like aluminium, and purification of copper.
The movement of cations is toward the cathode while anions migrate toward the anode.
Faraday’s laws of electrolysis govern the quantitative aspects of deposition.
The nature of the electrolyte and electrode material influences the products formed at the electrodes.

Tags: General Science

03 Mar 2026

This MCQ is part of the UP PCS Prelims Mock Tests – March 2026 series, focusing on UP PCS Prelims Mock Tests – March 2026 | Test 1

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Quiz: UP PCS Prelims Mock Tests – March 2026 | Test 1

Question 16 of 30

With reference to Electrolysis, consider the following statements:1. Oxidation occurs at the anode.2. Reduction occurs at the cathode.3. In an electrolytic cell, the anode is negatively charged.Which of the statements given above is/are correct?

Explanation

Key Fact(s)

Related MCQs

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With reference to Electrolysis, consider the following statements:

1. Oxidation occurs at the anode.
2. Reduction occurs at the cathode.
3. In an electrolytic cell, the anode is negatively charged.

Which of the statements given above is/are correct?