Redox Reactions and Electrochemistry – Interactive Quiz & Cheatsheet

Understand oxidation-reduction principles and electrochemical cells with this engaging quiz and reference guide

Updated: just now

Categories: Mini Game, Chemistry, Class 11, Physical Chemistry
Tags: Mini Game, Chemistry, Class 11, Redox Reactions, Electrochemistry, Oxidation Number, Galvanic Cell, Electrolysis
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Redox Reactions & Electrochemistry Cheatsheet & Quiz

Redox Reactions & Electrochemistry Cheatsheet

Cheat Codes & Shortcuts

  • Redox Reaction: Reaction involving transfer of electrons (oxidation and reduction).
  • Oxidation: Loss of electrons.
  • Reduction: Gain of electrons.
  • Oxidizing Agent: Species that gets reduced.
  • Reducing Agent: Species that gets oxidized.
  • Electrochemical Cell: Device converting chemical energy to electrical energy or vice versa.
  • Galvanic/Voltaic Cell: Spontaneous redox reaction producing electricity.
  • Electrolytic Cell: Uses electricity to drive non-spontaneous redox reaction.
  • Standard Electrode Potential (\(E^\circ\)): Measures tendency to gain electrons under standard conditions.
  • Nernst Equation: Calculates electrode potentials under non-standard conditions.

Quick Reference Table

Term Definition / Formula Example / Note
Oxidation Loss of electrons (e.g., Zn → Zn\(^{2+}\) + 2e\(^{-}\)) Zn is oxidized
Reduction Gain of electrons (e.g., Cu\(^{2+}\) + 2e\(^{-}\) → Cu) Cu\(^{2+}\) is reduced
Cell Potential \(E_{cell}\) \(E_{cell} = E^\circ_{cathode} - E^\circ_{anode}\) Positive means spontaneous reaction
Nernst Equation \(E = E^\circ - \frac{RT}{nF} \ln Q\) Calculates cell potential at non-standard conditions
Galvanic Cell Produces electricity through spontaneous reaction Zinc-Copper cell

Advice

Step 1: Identify oxidation and reduction half-reactions.

Step 2: Determine anode and cathode.

Step 3: Use standard electrode potentials to calculate \(E^\circ_{cell}\).

Step 4: Apply Nernst equation for non-standard conditions.

Step 5: Distinguish between galvanic and electrolytic cells.

Redox & Electrochemistry Quick Tips

  • Oxidation number: Key for identifying electron transfer.
  • SHE: Standard Hydrogen Electrode, defined as 0 V.
  • More positive \(E^\circ\): Stronger oxidizing agent.
  • Galvanic cell: Spontaneous, produces current.
  • Electrolytic cell: Non-spontaneous, requires external voltage.

Redox Reactions & Electrochemistry Speed Quiz

Test your speed with 5 questions! You have 30 seconds per question.