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Questions and Answers
Q1. What is the process of bleaching and what species is responsible for bleaching action in the given reaction? Explain.
Q1. What is the process of bleaching and what species is responsible for bleaching action in the given reaction? Explain.
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.
Q2. Explain the concept of disproportionation reaction with respect to MnO42- and MnO4– in an acidic medium.
Q2. Explain the concept of disproportionation reaction with respect to MnO42- and MnO4– in an acidic medium.
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.
Q3. How do the provided important questions help Class 11 students in their preparation for annual examinations and entrance exams like NEET and JEE?
Q3. How do the provided important questions help Class 11 students in their preparation for annual examinations and entrance exams like NEET and JEE?
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.
Q4. Why is it important for students to practice Class 11 chemistry important questions based on the CBSE board curriculum?
Q4. Why is it important for students to practice Class 11 chemistry important questions based on the CBSE board curriculum?
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Q5. What is the significance of the provided PDF of Class 11 Chemistry Chapter 8 Redox Reactions Important Questions with Answers?
Q5. What is the significance of the provided PDF of Class 11 Chemistry Chapter 8 Redox Reactions Important Questions with Answers?
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Study Notes
Importance of Redox Reactions in Class 11 Chemistry
- Bleaching is a process where an oxidation reaction occurs, and the responsible species for this action is not specified in the given reaction.
- In an acidic medium, MnO42- and MnO4– undergo a disproportionation reaction, where a single species reacts to form two or more different species with different oxidation states.
Preparation for Exams
- Practicing important questions from Class 11 chemistry helps students prepare for annual examinations and competitive exams like NEET and JEE.
- It enables students to assess their understanding of the concepts and identify areas that need improvement.
- Practicing important questions based on the CBSE board curriculum helps students familiarize themselves with the exam pattern and question types.
Significance of Important Questions
- The provided PDF of Class 11 Chemistry Chapter 8 Redox Reactions Important Questions with Answers is a valuable resource for students to practice and reinforce their understanding of redox reactions.
- It helps students develop problem-solving skills, critical thinking, and time management, which are essential for success in exams.
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Description
Prepare for your Class 11 chemistry exams with these important questions and answers for Chapter 8 - Redox Reactions. These questions are designed to help students quickly revise the key concepts and excel in their annual examinations.
