Class 11 Chemistry Redox Reactions - Important Questions

Bleaching is the process of whitening or removing color from a substance. In the given reaction, Cl2(g) + 2OH– (aq) → CIO– (aq) + Cl– (aq) + H2O(l), the species responsible for bleaching action is the hypochlorite ion (ClO–). Cl2 bleaches substances due to the oxidizing action of hypochlorite ion.

Disproportionation is a redox reaction in which one intermediate oxidation state component transforms into two higher and lower oxidation state compounds. In an acidic medium, MnO42- undergoes disproportionation because it can exist in an intermediate oxidation state, leading to the formation of Mn2+ and MnO4–. On the other hand, MnO4– does not undergo disproportionation as it is already in its highest oxidation state.

The provided important questions help Class 11 students quickly review all the concepts covered in the chapter, which is essential for their preparation for annual examinations and entrance exams like NEET and JEE. By practicing these questions, students can strengthen their understanding and improve their performance in exams.

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