Which of the following is NOT a redox reaction?

Chemistry JAMB 1982

Which of the following is NOT a redox reaction?

  • 2HNO2 + 2HI → 2H2O + 2NO + I2
  • Zn + H2SO4 → ZnSO4 + H2
  • Ca(HCO3)2 → CaCO3 + H2O + CO2 checkmark
  • 4FeO + O2 → 2Fe2O3
  • 2Na + Cl2 → 2NaCl

The correct answer is: C

Explanation

Ca(HCO2) → CaCO3 + H2O + CO2 is not a redox reaction
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