STANDARDChemistry-Redox Reactions
STANDARD Chemistry Reduction MCQ Question
Type: MCQ-conceptual-Medium-Class 11
In which of the following reactions, the underlined substance has been reduced?
A
CO + CuO → CO₂ + Cu
B
CuO + 2HCl → CuCl₂ + H₂O
C
4H₂O + 3Fe → 4H₂ + Fe₃O₄
D
C + 4HNO₃ → CO₂ + 2H₂O + 4NO₂
Correct Answer
Option C
Detailed Explanation
Oxidation number of H decreases from +1 to 0. Hence, H₂O is reduced to H₂.
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