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Answer:The reduction reaction is: Cl₂ + 2 e⁻ ⇄ 2 Cl⁻The oxidation reaction is: Cs ⇄ Cs⁺ + 1 e⁻Explanation:In aredoxreaction,two half-reactionshappen simultaneously. Theoxidationrefers to a species losing electrons. Thereductionrefers to a species gaining electrons.Let's consider the following reaction.Cl₂ + 2 Cs ⇄ 2CsClWe can write theionic equation.Cl₂ + 2 Cs ⇄ 2 Cs⁺ + 2 Cl⁻The reduction reaction is: Cl₂ + 2 e⁻ ⇄ 2 Cl⁻We added 2 electrons to the left (electrons gained) to balance the half-reaction electrically.The oxidation reaction is: Cs ⇄ Cs⁺ + 1 e⁻We added 1 electron to the right (electrons lost) to balance the half-reaction electrically....