Chemistry MCQs with Answers

1. Electrochemistry is the study of:

  1. Chemical reactions involving heat energy
  2. Chemical reactions involving electrical energy
  3. Chemical reactions involving light energy
  4. Chemical reactions involving nuclear energy
Answer: B) Chemical reactions involving electrical energy

2. A device that converts chemical energy into electrical energy is called:

  1. Galvanic cell
  2. Electrolytic cell
  3. Fuel cell
  4. Solar cell
Answer: A) Galvanic cell

3. In an electrolytic cell, electrical energy is converted into:

  1. Mechanical energy
  2. Light energy
  3. Chemical energy
  4. Nuclear energy
Answer: C) Chemical energy

4. Which electrode is the site of oxidation in an electrochemical cell?

  1. Cathode
  2. Anode
  3. Electrolyte
  4. Salt bridge
Answer: B) Anode

5. Which electrode is the site of reduction in an electrochemical cell?

  1. Anode
  2. Electrolyte
  3. Salt bridge
  4. Cathode
Answer: D) Cathode

6. The device used to measure the potential difference between two electrodes is:

  1. Ammeter
  2. Galvanometer
  3. Voltmeter
  4. Potentiometer
Answer: C) Voltmeter

7. The electrode potential measured under standard conditions is called:

  1. Cell potential
  2. Standard electrode potential
  3. Oxidation potential
  4. Reduction potential
Answer: B) Standard electrode potential

8. The standard hydrogen electrode has a potential of:

  1. 0 volt
  2. 1 volt
  3. −1 volt
  4. 2 volt
Answer: A) 0 volt

9. The process of depositing a layer of metal on another metal using electric current is called:

  1. Electrolysis
  2. Electroplating
  3. Electrorefining
  4. Corrosion
Answer: B) Electroplating

10. Faraday’s laws are related to:

  1. Electrolysis
  2. Magnetism
  3. Thermodynamics
  4. Optics
Answer: A) Electrolysis
Last updated on April 7, 2026 by Priyanka Deshmukh

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