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When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?
- a)Iron displaces copper from the sulphate solution.
- b)There is no change in colour of the solution.
- c)Iron acquires reddish-brown colour.
- d)All of the above
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
When a piece of iron metal is placed in copper sulphate solution, whic...
Iron displaces copper from the sulphate solution leading to the formation of ferrous sulphate and copper.
CuSO4 + Fe → FeSO4 + Cu
The blue colour of the solution changes to pale green and there is a reddish-brown deposit of copper on the piece of iron.
This is a displacement reaction in which a more reactive metal displaces a less reactive metal from its salt solution.
The blue colour of the solution changes to pale green and there is a reddish-brown deposit of copper on the piece of iron.
This is a displacement reaction in which a more reactive metal displaces a less reactive metal from its salt solution.
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When a piece of iron metal is placed in copper sulphate solution, whic...
Reaction Between Iron and Copper Sulphate
When iron metal is placed in a copper sulphate solution, a chemical reaction occurs. Here’s what happens:
Displacement Reaction
- Iron (Fe) is more reactive than copper (Cu).
- In this displacement reaction, iron displaces copper from the copper sulphate solution (CuSO4).
Observation of Changes
- Change in Colour of the Solution: The blue colour of the copper sulphate solution changes to a light green as copper is displaced by iron.
- Formation of Copper Deposits: Reddish-brown copper metal is deposited on the surface of the iron.
Analysis of Options
Now, let’s analyze the options given in the question:
- Option A: Iron displaces copper from the sulphate solution.
- This is true; copper is displaced, confirming the reaction.
- Option B: There is no change in the colour of the solution.
- This is false; the blue colour changes to green, indicating a change.
- Option C: Iron acquires reddish-brown colour.
- This is true; the iron gets covered with reddish-brown copper.
- Option D: All of the above.
- This cannot be correct since option B is false.
Conclusion
The correct answer is option 'B' because there is indeed a noticeable change in the colour of the solution when iron is placed in copper sulphate, contradicting the statement that there is no change.
When iron metal is placed in a copper sulphate solution, a chemical reaction occurs. Here’s what happens:
Displacement Reaction
- Iron (Fe) is more reactive than copper (Cu).
- In this displacement reaction, iron displaces copper from the copper sulphate solution (CuSO4).
Observation of Changes
- Change in Colour of the Solution: The blue colour of the copper sulphate solution changes to a light green as copper is displaced by iron.
- Formation of Copper Deposits: Reddish-brown copper metal is deposited on the surface of the iron.
Analysis of Options
Now, let’s analyze the options given in the question:
- Option A: Iron displaces copper from the sulphate solution.
- This is true; copper is displaced, confirming the reaction.
- Option B: There is no change in the colour of the solution.
- This is false; the blue colour changes to green, indicating a change.
- Option C: Iron acquires reddish-brown colour.
- This is true; the iron gets covered with reddish-brown copper.
- Option D: All of the above.
- This cannot be correct since option B is false.
Conclusion
The correct answer is option 'B' because there is indeed a noticeable change in the colour of the solution when iron is placed in copper sulphate, contradicting the statement that there is no change.
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When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer?
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When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? for Class 6 2024 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 6 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer?.
When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? for Class 6 2024 is part of Class 6 preparation. The Question and answers have been prepared according to the Class 6 exam syllabus. Information about When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 6 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer?.
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When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of When a piece of iron metal is placed in copper sulphate solution, which of the following is not observed?a)Iron displaces copper from the sulphate solution.b)There is no change in colour of the solution.c)Iron acquires reddish-brown colour.d)All of the aboveCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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