Here we will provide you the 50+ MCQ Questions of Electrochemistry for NEET-UG. Electrochemistry is the 3rd chapter in Class XII or Class 12 Chemistry NCERT Unit Electrochemistry NEET (conducted by NTA) is based on the NCERT book.
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These 50+ MCQ questions are selected by the experts of studyrate.in, and these are more difficult questions, which will help you to better understand Electrochemistry NEET MCQ Questions with Answers.
Electrochemistry NEET MCQ
Which of the following statements is true regarding oxidation and reduction reactions?
a) Oxidation is the gain of electrons, while reduction is the loss of electrons.
b) Oxidation is the loss of electrons, while reduction is the gain of electrons.
c) Oxidation and reduction are the same thing.
d) None of the above.
Answer b) Oxidation is the loss of electrons, while reduction is the gain of electrons.
Which of the following statements is true regarding the standard hydrogen electrode?
a) The standard hydrogen electrode is used to measure the reduction potential of a half-cell.
b) The standard hydrogen electrode is used to measure the oxidation potential of a half-cell.
c) The standard hydrogen electrode is made up of a platinum electrode and a hydrogen gas electrode.
d) The standard hydrogen electrode is used to measure the voltage of a galvanic cell.
Answer: a) The standard hydrogen electrode is used to measure the reduction potential of a half-cell.
Which of the following is true regarding a galvanic cell?
a) In a galvanic cell, the anode is the site of oxidation.
b) In a galvanic cell, the cathode is the site of reduction.
c) The direction of electron flow in a galvanic cell is from the anode to the cathode.
d) All of the above.
Answer d) All of the above.
Which of the following is an example of a redox reaction?
a) 2HCl + Mg → MgCl2 + H2
b) NaCl + AgNO3 → NaNO3 + AgCl
c) H2O → H+ + OH-
d) CH4 + 2O2 → CO2 + 2H2O
Answer d) CH4 + 2O2 → CO2 + 2H2O
Which of the following is true regarding the Nernst equation?
a) The Nernst equation relates the standard reduction potential of a half-cell to the concentration of the species in solution.
b) The Nernst equation is used to calculate the standard potential of a galvanic cell.
c) The Nernst equation is used to calculate the non-standard potential of a galvanic cell.
d) The Nernst equation is used to calculate the equilibrium constant of a redox reaction.
Answer c) The Nernst equation is used to calculate the non-standard potential of a galvanic cell.
Which of the following is true regarding the electrolysis of molten NaCl?
a) Sodium ions are reduced at the cathode.
b) Chloride ions are oxidized at the anode.
c) Sodium ions are oxidized at the anode.
d) Chloride ions are reduced at the cathode.
Answer c) Sodium ions are oxidized at the anode.
What is the oxidation state of chlorine in ClO4-?
a) +1
b) -1
c) +5
d) -5
Answer:c) +5
Which of the following statements is true regarding corrosion?
a) Corrosion is a chemical reaction that occurs when a metal is exposed to air and moisture.
b) Corrosion is a type of redox reaction.
c) Corrosion always results in the formation of an oxide layer on the metal surface.
d) All of the above.
Answer b) Corrosion is a type of redox reaction.
Which of the following is true regarding concentration cells?
a) Concentration cells generate electrical energy by using a concentration gradient.
b) Concentration cells are examples of galvanic cells.
c) The anode and cathode in a concentration cell are the same material.
d) None of the above.
Answer: c) The anode and cathode in a concentration cell are the same material.
Which of the following is true regarding a fuel cell?
a) A fuel cell generates electricity by burning a fuel.
b) A fuel cell is an example of a galvanic cell.
c) A fuel cell is a type of battery.
d) All of the above.
Answer:d) All of the above.
Answer: b) A fuel cell is an example of a galvanic cell.
Which of the following statements is true regarding the standard electrode potential?
a) The standard electrode potential is the potential difference between a half-cell and the standard hydrogen electrode.
b) The standard electrode potential is the potential difference between two half-cells.
c) The standard electrode potential is the potential difference between a half-cell and the standard oxygen electrode.
d) None of the above.
Answer:a) The standard electrode potential is the potential difference between a half-cell and the standard hydrogen electrode.
Which of the following is true regarding the cathode in a galvanic cell?
a) The cathode is the site of oxidation.
b) The cathode is the site of reduction.
c) The cathode is where the electrons are generated.
d) None of the above.
Answer:b) The cathode is the site of reduction.
Which of the following is true regarding the standard reduction potential?
a) The more positive the standard reduction potential, the greater the tendency for reduction to occur.
b) The more negative the standard reduction potential, the greater the tendency for reduction to occur.
c) The standard reduction potential has no relationship to the tendency for reduction to occur.
d) None of the above.
Answer:a) The more positive the standard reduction potential, the greater the tendency for reduction to occur.
Which of the following is true regarding the electrolysis of water?
a) Hydrogen is produced at the anode.
b) Oxygen is produced at the cathode.
c) Hydrogen is produced at the cathode.
d) Oxygen is produced at the anode.
Answer:c) Hydrogen is produced at the cathode.
Which of the following is true regarding the electrode potential of a half-cell?
a) The electrode potential of a half-cell is dependent on the concentration of the species in solution.
b) The electrode potential of a half-cell is independent of the concentration of the species in solution.
c) The electrode potential of a half-cell is the same as the standard reduction potential.
d) None of the above.
Answer:a) The electrode potential of a half-cell is dependent on the concentration of the species in solution.
Which of the following is true regarding a concentration cell?
a) A concentration cell generates electrical energy by using a concentration gradient.
b) A concentration cell is an example of a galvanic cell.
c) The anode and cathode in a concentration cell are different materials.
d) All of the above.
Answer:c) The anode and cathode in a concentration cell are the same material.
Which of the following is true regarding the anode in a galvanic cell?
a) The anode is the site of oxidation.
b) The anode is the site of reduction.
c) The anode is where the electrons are generated.
d) None of the above.
Answer:a) The anode is the site of oxidation.
Which of the following is true regarding the corrosion of iron?
a) The corrosion of iron occurs when the iron is exposed to air and water.
b) The corrosion of iron is a redox reaction.
c) The corrosion of iron always results in the formation of rust.
d) All of the above.
Answer:d) All of the above.
Which of the following is true regarding the half-reaction of Ag+ + e- → Ag?
a) Ag+ is being reduced.
b) Ag+ is being oxidized.
c) Ag is being reduced.
d) Ag is being oxidized.
Answer:a) Ag+ is being reduced.
Which of the following is true regarding the half-reaction of Cu2+ + 2e- → Cu?
a) Cu2+ is being reduced.
b) Cu2+ is being oxidized.
c) Cu is being reduced.
d) Cu is being oxidized.
Answer:a) Cu2+ is being reduced.
Which of the following is true regarding the Nernst equation?
a) The Nernst equation can be used to calculate the standard reduction potential.
b) The Nernst equation can be used to calculate the electrode potential under non-standard conditions.
c) The Nernst equation is independent of the concentration of the species in solution.
d) None of the above.
Answer:b) The Nernst equation can be used to calculate the electrode potential under non-standard conditions.
Which of the following is true regarding the Faraday constant?
a) The Faraday constant is the charge on one mole of electrons.
b) The Faraday constant is the charge on one mole of protons.
c) The Faraday constant is the number of electrons in one mole of a substance.
d) None of the above.
Answer:a) The Faraday constant is the charge on one mole of electrons.
Which of the following is true regarding a rechargeable battery?
a) A rechargeable battery can be recharged by applying an electrical current.
b) A rechargeable battery is an example of a galvanic cell.
c) A rechargeable battery is a type of primary battery.
d) All of the above.
Answer:a) A rechargeable battery can be recharged by applying an electrical current.
Which of the following is true regarding the standard electrode potential?
a) The standard electrode potential is the potential difference between a half-cell and the standard hydrogen electrode.
b) The standard electrode potential is the potential difference between two half-cells.
c) The standard electrode potential is the potential difference between a half-cell and the standard oxygen electrode.
d) None of the above.
Answer:a) The standard electrode potential is the potential difference between a half-cell and the standard hydrogen electrode.
Which of the following is true regarding a lead-acid battery?
a) A lead-acid battery is a type of primary battery.
b) A lead-acid battery can be recharged by applying an electrical current.
c) A lead-acid battery is an example of a galvanic cell.
d) All of the above.
Answer:b) A lead-acid battery can be recharged by applying an electrical current.
Which of the following is true regarding the half-reaction of Fe2+ → Fe3+ + e-?
a) Fe2+ is being reduced.
b) Fe2+ is being oxidized.
c) Fe3+ is being reduced.
d) Fe3+ is being oxidized.
Answer:b) Fe2+ is being oxidized.
Which of the following is true regarding the half-reaction of Cl2 + 2e- → 2Cl-?
a) Cl2 is being reduced.
b) Cl2 is being oxidized.
c) Cl- is being reduced.
d) Cl- is being oxidized.
Answer:a) Cl2 is being reduced.
Which of the following is true regarding the electrolysis of CuSO4?
a) Cu2+ ions are reduced at the cathode.
b) SO42- ions are oxidized at the anode.
c) Cu2+ ions are oxidized at the anode.
d) SO42- ions are reduced at the cathode.
Answer a) Cu2+ ions are reduced at the cathode.
Which of the following is true regarding the electrolysis of water?
a) Water is oxidized at the cathode to form oxygen gas.
b) Water is reduced at the anode to form hydrogen gas.
c) Water is oxidized at the anode to form oxygen gas.
d) Water is reduced at the cathode to form hydrogen gas.
Answer:d) Water is reduced at the cathode to form hydrogen gas.
Which of the following is true regarding a concentration cell?
a) A concentration cell generates electricity by the transfer of electrons from one electrode to another.
b) A concentration cell has two half-cells of the same composition but different concentrations.
c) A concentration cell is an example of a galvanic cell.
d) All of the above.
Answer:b) A concentration cell has two half-cells of the same composition but different concentrations.
We hope there NEET MCQ of Class 12 Chapter 3 Electrochemistry will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
