Redox Reactions · NEET Preparation Chemistry

In the reaction: 3Cl2 + 6OH^- rightarrow ClO3^- + 5Cl^- + 3H2O, the chlorine is:

Practice question from Redox Reactions (NEET Preparation Chemistry), with the correct answer and a step-by-step solution.

medium · MCQ · Q-85F13F

In the reaction: 3Cl2+6OH−→ClO3−+5Cl−+3H2O3Cl_2 + 6OH^- \rightarrow ClO_3^- + 5Cl^- + 3H_2O, the chlorine is:

  1. A.Only oxidized
  2. B.Only reduced
  3. C.Both oxidized and reduced (disproportionation)Correct answer
  4. D.Neither oxidized nor reduced

Solution

In Cl2Cl_2, the oxidation state of chlorine is 0. In ClO3−ClO_3^-, it is +5 (oxidized), and in Cl−Cl^-, it is -1 (reduced). Since the same element undergoes both oxidation and reduction simultaneously, it is a disproportionation reaction.

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