Chemistry - Salt Analysis Question with Solution | TestHub

(A) Hg²⁺ → strong oxidizing agent, can oxidize Cu → Cu²⁺

(B) Mg²⁺ → very stable ion, cannot oxidize Cu

(C) Hg₂²⁺ (mercurous ion) → unstable, gets reduced to Hg⁰, so can oxidize Cu

(D) Ag⁺ → strong oxidizing agent, oxidizes Cu → Cu²⁺

Reactions:

$$Cu+2A{g}^{+}\to C{u}^{2+}+2Ag$$

So, ions that oxidize a copper sheet are:

A, C, D