Adaptive Practice
Redox
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Question 1 of 10
⏱ 0:30
Easy
Which of the following species is oxidized in the reaction: Zn + CuSO₄ → ZnSO₄ + Cu?
Easy
In the redox reaction: 2Fe³⁺ + Sn²⁺ → 2Fe²⁺ + Sn⁴⁺, which species acts as the oxidizing agent?
Medium
What is the oxidation state of chromium in K₂Cr₂O₇?
Medium
Identify the reducing agent in the reaction: MnO₄⁻ + 8H⁺ + 5Fe²⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O
Medium
In the reaction: 2H₂O₂ → 2H₂O + O₂, what is the oxidizing agent?
Medium
Calculate the number of electrons transferred in the redox reaction: 2Fe + 3Cl₂ → 2FeCl₃
Easy
Which of the following statements is TRUE for a redox reaction?
Medium
In the electrochemical series, which metal would be the best reducing agent?
Hard
Balance the redox reaction in acidic medium: MnO₄⁻ + Fe²⁺ → Mn²⁺ + Fe³⁺. What is the coefficient of Fe²⁺ after balancing?
Hard
In the reaction: 2Cr₂O₇²⁻ + 16H⁺ + 6I⁻ → 4Cr³⁺ + 3I₂ + 8H₂O, what is the total number of electrons transferred?