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A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
- a)KMnO4 is an oxidising agent, it oxidises FeSO4
- b)FeSO4 acts as an oxidising agent and oxidises KMnO4
- c)The colour disappears due to dilution; no reaction is involved
- d)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compoun
Correct answer is option 'D'. Can you explain this answer?
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A dilute ferrous sulphate solution was gradually added to the beaker c...
Explanation:
When a dilute ferrous sulphate solution is added to an acidified potassium permanganate solution, the light purple colour of the solution fades and finally disappears. This can be explained by the following:
- KMnO4 is an oxidising agent: Potassium permanganate (KMnO4) is a strong oxidising agent. It oxidises many substances including ferrous sulphate (FeSO4). However, in this case, FeSO4 is not oxidised by KMnO4.
- FeSO4 acts as an oxidising agent: Ferrous sulphate (FeSO4) can act as a reducing agent and reduce some oxidising agents. However, in this case, FeSO4 is not reducing KMnO4.
- The colour disappears due to dilution: Dilution can cause a decrease in the intensity of colour of a solution. However, in this case, the disappearance of the colour is not due to dilution alone.
- KMnO4 is an unstable compound: Potassium permanganate (KMnO4) is an unstable compound and can decompose in the presence of reducing agents like FeSO4. The reduction of KMnO4 by FeSO4 produces manganese (IV) oxide (MnO2) which is a brown solid and has no colour in solution. Therefore, the disappearance of the colour of the solution is due to the decomposition of KMnO4 to MnO2.
Conclusion:
Option 'D' is the correct explanation for the observation.
When a dilute ferrous sulphate solution is added to an acidified potassium permanganate solution, the light purple colour of the solution fades and finally disappears. This can be explained by the following:
- KMnO4 is an oxidising agent: Potassium permanganate (KMnO4) is a strong oxidising agent. It oxidises many substances including ferrous sulphate (FeSO4). However, in this case, FeSO4 is not oxidised by KMnO4.
- FeSO4 acts as an oxidising agent: Ferrous sulphate (FeSO4) can act as a reducing agent and reduce some oxidising agents. However, in this case, FeSO4 is not reducing KMnO4.
- The colour disappears due to dilution: Dilution can cause a decrease in the intensity of colour of a solution. However, in this case, the disappearance of the colour is not due to dilution alone.
- KMnO4 is an unstable compound: Potassium permanganate (KMnO4) is an unstable compound and can decompose in the presence of reducing agents like FeSO4. The reduction of KMnO4 by FeSO4 produces manganese (IV) oxide (MnO2) which is a brown solid and has no colour in solution. Therefore, the disappearance of the colour of the solution is due to the decomposition of KMnO4 to MnO2.
Conclusion:
Option 'D' is the correct explanation for the observation.
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Community Answer
A dilute ferrous sulphate solution was gradually added to the beaker c...
A is correct answer KMnO4 itself gets reduced and oxidises Fe
oxidation no. of Mn goes from +7 to +2 (reduces), and that of Fe changes from +2 to +3 (Oxidises)
oxidation no. of Mn goes from +7 to +2 (reduces), and that of Fe changes from +2 to +3 (Oxidises)
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A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer?
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A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer?.
A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer?.
Solutions for A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?a)KMnO4 is an oxidising agent, it oxidises FeSO4b)FeSO4 acts as an oxidising agent and oxidises KMnO4c)The colour disappears due to dilution; no reaction is involvedd)KMnO4 is an unstable compound and decomposes in presence of FeSO4 to a colourless compounCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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