Which of the following is a redox reaction?
A. NaCl + KNO3 → NaNO3 + KCl
B. CaC2O4 + 2HCl → CaCl2 + H2C2O4
C. Mg(OH)2 + 2NH4Cl → MgCl2 + 2NH4OH
D. Zn + 2AgCN → 2Ag + Zn(CN)2
Answer:D
Which of the following is a redox reaction?
A. NaCl + KNO3 → NaNO3 + KCl B. CaC2O4 + 2HCl → CaCl2 + H2C2O4 C. Mg(OH)2 + 2NH4Cl → MgCl2 + 2NH4OH D. Zn + 2AgCN → 2Ag + Zn(CN)2