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Redox Reactions Practice Questions

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Updated on Sep 25, 2011

Review the following concepts if needed -  Redox Reactions Study Guide

Practice Questions

Balance the following reactions in acidic solutions:

1.  Cu + NO3– → Cu2+ + NO

2.  MnO4– + Fe2+ → Fe3+ + Mn2+

3. Zn + HCl → Zn2+ + H2 + Cl

 

Balance the following reactions in basic solutions:

4. Cl2 → ClO + Cl

5.  H2O2 + SO32– → H2O + SO42–

6.  Fe2+ + H2O2 → Fe3+

 Answers

1. 8H+ 3Cu + 2NO3→ 3Cu2+ + 2NO + 4H2O

2. 8H+ + MnO4 + 5Fe2+→ 5Fe3+ + Mn2++ 4H2O

3.  H+ + Zn + HCl → Zn2+ + H2 + Cl

4. 2OH + Cl2 → ClO + Cl+ H2O

5. H2O2 + SO32–→ H2O + SO42–

6. 2Fe2+ + H2O2 → 2Fe3+ + 2OH

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