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In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed catalyses the reaction. The manganous salt is
- a)a promoter
- b)a positive catalyst
- c)an autocatalyst
- d)none of these
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
In the titration between oxalic acid and acidified potassium permangan...
Titration between Oxalic Acid and Acidified Potassium Permanganate:
Background Information:
- Oxalic acid is a dicarboxylic acid with the formula H2C2O4.
- Potassium permanganate is an oxidizing agent with the formula KMnO4.
- In an acidified solution, potassium permanganate can oxidize oxalic acid to carbon dioxide and water.
- The reaction is as follows:
5H2C2O4 + 2KMnO4 + 3H2SO4 → K2SO4 + 2MnSO4 + 10CO2 + 8H2O
Explanation:
- The reaction between oxalic acid and acidified potassium permanganate is a redox reaction.
- During the reaction, the purple color of the potassium permanganate solution disappears, indicating the reduction of the permanganate ion to a colorless product.
- The product formed is manganese(II) sulfate, which is a catalyst for the reaction.
- A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.
- Manganese(II) sulfate is an autocatalyst because it is produced during the reaction and then accelerates the reaction itself.
- This catalysis occurs because manganese(II) ions can react with permanganate ions to form manganese(III) ions, which then react with oxalic acid to form carbon dioxide and water.
- The manganese(II) ions are then regenerated by the reduction of manganese(III) ions by oxalic acid.
- Therefore, the manganese(II) ions act as a catalyst for the reaction by increasing the rate of the reaction without being consumed in the process.
- This reaction is commonly used in analytical chemistry for the quantitative determination of oxalic acid in a sample.
Background Information:
- Oxalic acid is a dicarboxylic acid with the formula H2C2O4.
- Potassium permanganate is an oxidizing agent with the formula KMnO4.
- In an acidified solution, potassium permanganate can oxidize oxalic acid to carbon dioxide and water.
- The reaction is as follows:
5H2C2O4 + 2KMnO4 + 3H2SO4 → K2SO4 + 2MnSO4 + 10CO2 + 8H2O
Explanation:
- The reaction between oxalic acid and acidified potassium permanganate is a redox reaction.
- During the reaction, the purple color of the potassium permanganate solution disappears, indicating the reduction of the permanganate ion to a colorless product.
- The product formed is manganese(II) sulfate, which is a catalyst for the reaction.
- A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.
- Manganese(II) sulfate is an autocatalyst because it is produced during the reaction and then accelerates the reaction itself.
- This catalysis occurs because manganese(II) ions can react with permanganate ions to form manganese(III) ions, which then react with oxalic acid to form carbon dioxide and water.
- The manganese(II) ions are then regenerated by the reduction of manganese(III) ions by oxalic acid.
- Therefore, the manganese(II) ions act as a catalyst for the reaction by increasing the rate of the reaction without being consumed in the process.
- This reaction is commonly used in analytical chemistry for the quantitative determination of oxalic acid in a sample.
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Community Answer
In the titration between oxalic acid and acidified potassium permangan...
Permanganate in acidic medium to == Mn+2
oxalate to== Co2
The Mn2+ acts as a homogeneous catalyst because it is easily oxidized to Mn3+ by the MnO4- ions and then reduced back to Mn2+ ions by the C2O42- ions.
oxalate to== Co2
The Mn2+ acts as a homogeneous catalyst because it is easily oxidized to Mn3+ by the MnO4- ions and then reduced back to Mn2+ ions by the C2O42- ions.
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In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed catalyses the reaction. The manganous salt isa)a promoterb)a positive catalystc)an autocatalystd)none of theseCorrect answer is option 'C'. Can you explain this answer?
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In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed catalyses the reaction. The manganous salt isa)a promoterb)a positive catalystc)an autocatalystd)none of theseCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed catalyses the reaction. The manganous salt isa)a promoterb)a positive catalystc)an autocatalystd)none of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed catalyses the reaction. The manganous salt isa)a promoterb)a positive catalystc)an autocatalystd)none of theseCorrect answer is option 'C'. Can you explain this answer?.
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