Which of these represents a redox reaction?
AgNO3 + NaCl → AgCAl + NaNO3
H2S + Pb(NO3) → PbS + 2HNO3
CaCO3 → CaO + CO2
Zn + 2HCl → ZnCl2 + H2
Correct answer is D
No explanation has been provided for this answer.
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