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Which of the following is NOT a redox reaction?

Chemistry
JAMB 1982
Which of the following is NOT a redox reaction?
  • A. 2HNO2 + 2HI → 2H2O + 2NO + I2
  • B. Zn + H2SO4 → ZnSO4 + H2
  • C. Ca(HCO3)2 → CaCO3 + H2O + CO2
  • D. 4FeO + O2 → 2Fe2O3
  • E. 2Na + Cl2 → 2NaCl
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Correct Answer: Option C
Explanation
Ca(HCO2) → CaCO3 + H2O + CO2 is not a redox reaction
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