Electrochemistry

Electrolysis MCQs with Answers

Welcome to the Electrolysis MCQs with Answers, it helps learners quickly identify areas for improvement in Electrolysis Online Test.

Electrolysis is a process in which electrical energy is used to drive a non-spontaneous chemical reaction. It involves the decomposition of an electrolyte (a substance that conducts electricity when dissolved or molten) into its constituent elements or ions. This fundamental process finds applications in various industries, including metallurgy, electroplating, and chemical manufacturing.

In an electrolysis quiz, MCQs on electrolysis typically cover the principles and applications of this electrochemical process. Electrochemical processes multiple choice questions explore the mechanisms and types of electrolytic reactions, emphasizing the principles of oxidation and reduction involved.

Faraday’s laws MCQs focus on the quantitative aspects of electrolysis, including the relationship between the amount of substance deposited or liberated at an electrode and the amount of electric charge passed through the electrolyte.

Electrolytic cells exam questions delve into the construction, components, and operation of electrolytic cells, including the role of electrodes, electrolytes, and external power sources.

Electroplating MCQs examine the process of depositing a thin layer of metal onto a conductive surface through electrolysis, highlighting its applications in enhancing aesthetics, improving corrosion resistance, and manufacturing electronic components.

Electrolysis Online Quiz

By presenting 3 options to choose from, Electrolysis Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Electrolysis Questions and Answers and click over the correct answer.

  • Test Name: Electrolysis MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

Electrolysis MCQs

Electrolysis

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1 / 40

Which of the following is used as an electrolyte in the electrolysis of brine?

2 / 40

Which of the following statements about electrolysis is true?

3 / 40

What is the purpose of stirring the electrolyte during electrolysis?

4 / 40

What is the primary product of the electrolysis of aqueous sodium chloride?

5 / 40

In the electrolysis of brine, what gas is usually collected at the anode?

6 / 40

Which of the following is NOT a factor affecting the rate of electrolysis?

7 / 40

What is the charge on the ions that move towards the anode during electrolysis?

8 / 40

In electrolysis, the electrode connected to the positive terminal of the power supply is called the _______.

9 / 40

In the electrolysis of copper(II) sulfate solution, copper is deposited at the _______.

10 / 40

The substance that undergoes oxidation in electrolysis is called the _______.

11 / 40

What is the process of using electrolysis to coat a metal object with a thin layer of another metal?

12 / 40

Which of the following is NOT a product of electrolysis of water?

13 / 40

What is the purpose of using a timer in electrolysis?

14 / 40

In electrolysis, which electrode attracts anions?

15 / 40

What is the purpose of using a diaphragm in electrolysis?

16 / 40

Which of the following is a product of the electrolysis of molten sodium chloride?

17 / 40

What is the purpose of using a filter in electrolysis?

18 / 40

What happens to the concentration of ions in the electrolyte during electrolysis?

19 / 40

Which of the following metals is commonly electroplated onto objects?

20 / 40

Which of the following is NOT a common application of electrolysis?

21 / 40

Which of the following is used as an electrolyte in the electrolysis of copper(II) sulfate solution?

22 / 40

In the electrolysis of water, what gas is usually collected at the cathode?

23 / 40

Which of the following is used as an electrolyte in the electrolysis of aluminum oxide?

24 / 40

Which of the following factors affects the rate of electrolysis?

25 / 40

Which of the following is a common electrolyte used in the electroplating of silver?

26 / 40

What is the charge on the ions that move towards the cathode during electrolysis?

27 / 40

What is the purpose of the salt bridge or porous barrier in electrolysis?

28 / 40

What is the purpose of using a rectifier in electrolysis?

29 / 40

What is the purpose of adding an electrolyte in electrolysis?

30 / 40

What is the purpose of the inert electrode in electrolysis?

31 / 40

What is the primary product of the electrolysis of aqueous copper(II) chloride?

32 / 40

Which of the following statements about electrolysis is false?

33 / 40

Which of the following substances is commonly used as an electrolyte in electrolysis?

34 / 40

Which of the following is NOT a requirement for a substance to conduct electricity in electrolysis?

35 / 40

Which of the following is an example of an electrolytic cell?

36 / 40

What is the process of using electrical energy to drive a non-spontaneous chemical reaction?

37 / 40

Which of the following statements about electrolysis is true?

38 / 40

Which of the following statements about Faraday's laws of electrolysis is true?

39 / 40

What is the name of the device used to measure the amount of electricity passed during electrolysis?

40 / 40

The process of electrolysis is commonly used in the production of _______.

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Electrolysis Flashcards

What is the process of using electrical energy to drive a non-spontaneous chemical reaction?

Electrolysis

In electrolysis, the electrode connected to the positive terminal of the power supply is called the _______.

Anode

Which of the following substances is commonly used as an electrolyte in electrolysis?

Sodium chloride

The substance that undergoes oxidation in electrolysis is called the _______.

Anode material

What is the purpose of adding an electrolyte in electrolysis?

To conduct electricity

Which of the following is NOT a product of electrolysis of water?

Oxygen

What is the charge on the ions that move towards the cathode during electrolysis?

Positive

Which of the following is a product of the electrolysis of molten sodium chloride?

Sodium

The process of electrolysis is commonly used in the production of _______.

Metals

In electrolysis, which electrode attracts anions?

Anode

Which of the following is an example of an electrolytic cell?

Electroplating

What is the name of the device used to measure the amount of electricity passed during electrolysis?

Coulometer

What is the charge on the ions that move towards the anode during electrolysis?

Positive

Which of the following is NOT a factor affecting the rate of electrolysis?

Temperature

What is the purpose of the salt bridge or porous barrier in electrolysis?

To prevent mixing of products

Which of the following is used as an electrolyte in the electrolysis of copper(II) sulfate solution?

Copper electrodes

What is the primary product of the electrolysis of aqueous sodium chloride?

Hydrogen

What happens to the concentration of ions in the electrolyte during electrolysis?

Decreases

Which of the following metals is commonly electroplated onto objects?

Gold

What is the purpose of the inert electrode in electrolysis?

Facilitate electron transfer

Which of the following statements about Faraday's laws of electrolysis is true?

The amount of substance deposited is directly proportional to the charge passed

What is the process of using electrolysis to coat a metal object with a thin layer of another metal?

Electroplating

Which of the following is NOT a common application of electrolysis?

Electrorefining

In the electrolysis of water, what gas is usually collected at the cathode?

Hydrogen

Which of the following statements about electrolysis is false?

It is a spontaneous process

Which of the following is used as an electrolyte in the electrolysis of aluminum oxide?

Aluminum

What is the purpose of using a rectifier in electrolysis?

To convert AC to DC

Which of the following is NOT a requirement for a substance to conduct electricity in electrolysis?

High melting point

What is the purpose of stirring the electrolyte during electrolysis?

To maintain uniform concentration

Which of the following statements about electrolysis is true?

It can be used to decompose compounds

In the electrolysis of copper(II) sulfate solution, copper is deposited at the _______.

Cathode

Which of the following is a common electrolyte used in the electroplating of silver?

Silver nitrate

What is the purpose of using a filter in electrolysis?

To remove impurities from the electrolyte

Which of the following statements about electrolysis is true?

It is used in the extraction of metals from ores

What is the purpose of using a timer in electrolysis?

To control the duration of electrolysis

Which of the following factors affects the rate of electrolysis?

Current intensity

What is the primary product of the electrolysis of aqueous copper(II) chloride?

Copper

What is the purpose of using a diaphragm in electrolysis?

To separate products

Which of the following is used as an electrolyte in the electrolysis of brine?

Sodium hydroxide

In the electrolysis of brine, what gas is usually collected at the anode?

Chlorine

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