STANDARDChemistry-Redox Reactions
STANDARD Chemistry Identifying Redox Reactions MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following is not a redox reaction?
A
P₄ + 3OH⁻ + 3H₂O → PH₃ + 3H₂PO₂⁻
B
Na + H₂O → NaOH + 1/2H₂
C
CaCO₃ → CaO + CO₂
D
V₂O₅ + 5Ca → 2V + 5CaO
Correct Answer
Option C
Detailed Explanation
Since there is no change in oxidation number of any species in CaCO₃ → CaO + CO₂, it is not a redox reaction.
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