Which of the following reactions is an oxidation-reduction reaction?
A) NaOH + HCl → NaCl + H2O
B) AgNO3 + NaCl → AgCl + NaNO3
C) CH4 + 2 O2 → CO2 + 2 H2O
D) CaO + CO2 → CaCO3
Correct Answer:
Verified
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