Start learning →

B.Sc Biochemistry Redox & Electrochemistry — practice questions

Explore 11 free Redox & Electrochemistry questions in B.Sc Biochemistry Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

Practise Redox & Electrochemistry with Quill →

Redox & Electrochemistry questions and exercises with answers

Showing questions 1–11 of 11.

Which half-reaction from the notes represents reduction?Read the answer and worked solution →The potential developed between a metal rod and its solution due to oxidation is called:Read the answer and worked solution →The situation in which the charge buildup near the Zn rod prevents further oxidation is called:Read the answer and worked solution →Which half-reaction from the given notes represents oxidation?Read the answer and worked solution →In a Daniell cell, $\mathrm{Zn} | \mathrm{Zn}^{2+}(aq) \,||\, \mathrm{Cu}^{2+}(aq) | \mathrm{Cu}$, the standard EMF is calculated as:Read the answer and worked solution →The standard reduction potential of the standard hydrogen electrode (SHE) is assigned the value:Read the answer and worked solution →For a cell reaction with $E^\circ_\text{cell} = +0.59\,\text{V}$ and $n = 2$, the equilibrium constant $K$ at $298\,\text{K}$ is approximately:Read the answer and worked solution →Which of the following is classified as a secondary (rechargeable) cell?Read the answer and worked solution →Drag each clue onto its electrodeRead the answer and worked solution →Galvanic or electrolytic cell?Read the answer and worked solution →True or false: electrochemistryRead the answer and worked solution →

Worked practice questions

Which half-reaction from the notes represents reduction?

  1. $Zn \rightarrow Zn^{2+} + 2e^{-}$
  2. $Cu^{2+} + 2e^{-} \rightarrow Cu$
  3. $Cu \rightarrow Cu^{2+} + 2e^{-}$
  4. $Zn^{2+} \rightarrow Zn + 2e^{-}$
Show answer and solution

Correct answer: B. $Cu^{2+} + 2e^{-} \rightarrow Cu$

Reduction involves gain of electrons, so electrons must appear on the reactant side. In $Cu^{2+} + 2e^{-} \rightarrow Cu$, copper ions gain electrons to form copper metal.

Open this question →

The potential developed between a metal rod and its solution due to oxidation is called:

  1. Reduction potential
  2. Oxidation potential
  3. Solubility potential
  4. Neutralization potential
Show answer and solution

Correct answer: B. Oxidation potential

The notes define the potential developed between the rod and the solution in this case as oxidation potential, represented by $E(Zn/Zn^{2+})$.

Open this question →

The situation in which the charge buildup near the Zn rod prevents further oxidation is called:

  1. Equivalence point
  2. Triple point
  3. Saturation point
  4. End point
Show answer and solution

Correct answer: C. Saturation point

The notes explicitly state that when the positive charge layer around the rod prevents further oxidation, that condition is known as the saturation point.

Open this question →

How to practise

  1. Choose a Redox & Electrochemistry question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Chemistry topics

ChemistryStructure of AtomAtomic combinationsAtoms and ElementsClass9 Atom StructureJEE Main 2023 MixedAtomic StructureAtomic Structure and Valency