MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

At the anode, oxidation takes place. Oxidation is defined as the loss of electrons. Analyzing the given reactions: F _2 + 2e^- 2 F ^- involves the gain of electrons, hence it is a reduction reaction. 2 H ^+ + 1 2 O _2 + 2e^- H _2 O involves the gain of electrons, hence it is a reduction reaction. Fe ^ 2+ Fe ^ 3+ + 1e^- involves the loss of an electron, hence it is an oxidation reaction. Cu ^ 2+ + 2e^- Cu (s) involves the gain of electrons, hence it is a reduction reaction. Since only the third reaction represents oxidation, it is the only reaction possible at the anode. Answer: Fe ^ 2+ Fe ^ 3+ + 1e^-