Among the following, identify the correct statement? — Electrochemistry Chemistry Question

💡 Solution & Explanation

A species can be spontaneously oxidized by another if the reduction potential of the oxidizing agent is higher than that of the species being oxidized. Since E°(Cl2/Cl^-) = 1.36 V is greater than E°(I2/I^-) = 0.54 V, chlorine gas acts as a stronger oxidizing agent and can spontaneously oxidize iodide ions (I^-) to iodine (I2). None of the other listed combinations are thermodynamically spontaneous. Therefore, correct answer is C.