Question

Which of the following is a redox reaction.

• A. $NaCl + KNO_{3} \rightarrow NaNO_{3} + KCl$
• B. $CaC_{2}O_{4} + 2HCl \rightarrow CaCl_{2} + H_{2}C_{2}O_{4}$
• C. $Mg(OH)_{2} + 2NH_{4}Cl \rightarrow MgCl_{2} + 2NH_{4}OH$
• D. $Zn + 2AgCN \rightarrow 2Ag + Zn(CN)_{2}$

Answer 1

Answer: (D)

$Zn + 2AgCN \rightarrow 2Ag + Zn(CN)_{2}$

Answer 2