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When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?
- a)Blue colour of the solution fades.
- b)Iron nails becomes brownish in colour.
- c)It is a displacement reaction.
- d)Iron nails dissolves completly.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
When Iron nails are added to an aquous solution of copper sulphate, a ...
Explanation:
Introduction:
When iron nails are added to an aqueous solution of copper sulfate, a chemical reaction occurs known as a displacement reaction. In this reaction, iron displaces copper from the copper sulfate solution, resulting in the formation of iron sulfate and copper metal.
Explanation of options:
a) Blue color of the solution fades:
This statement is true. Copper sulfate solution is blue in color. When iron nails are added, the iron displaces copper from the solution, causing the blue color to fade.
b) Iron nails become brownish in color:
This statement is true. As iron displaces copper from the solution, copper metal is deposited on the surface of the iron nails. The brownish color observed is due to the formation of a thin layer of copper on the iron nails.
c) It is a displacement reaction:
This statement is true. A displacement reaction occurs when a more reactive element displaces a less reactive element from its compound. In this case, iron is more reactive than copper, so it displaces copper from copper sulfate, resulting in the formation of iron sulfate and copper metal.
d) Iron nails dissolve completely:
This statement is not true. Iron nails do not dissolve completely in the copper sulfate solution. Instead, they undergo a chemical reaction with copper sulfate to form iron sulfate and copper metal. The iron nails remain intact, although they may become thinner due to the loss of iron atoms during the reaction.
Conclusion:
Out of the given options, option 'D' is not true. Iron nails do not dissolve completely in the aqueous solution of copper sulfate. Instead, a displacement reaction occurs, resulting in the formation of iron sulfate and copper metal.
Introduction:
When iron nails are added to an aqueous solution of copper sulfate, a chemical reaction occurs known as a displacement reaction. In this reaction, iron displaces copper from the copper sulfate solution, resulting in the formation of iron sulfate and copper metal.
Explanation of options:
a) Blue color of the solution fades:
This statement is true. Copper sulfate solution is blue in color. When iron nails are added, the iron displaces copper from the solution, causing the blue color to fade.
b) Iron nails become brownish in color:
This statement is true. As iron displaces copper from the solution, copper metal is deposited on the surface of the iron nails. The brownish color observed is due to the formation of a thin layer of copper on the iron nails.
c) It is a displacement reaction:
This statement is true. A displacement reaction occurs when a more reactive element displaces a less reactive element from its compound. In this case, iron is more reactive than copper, so it displaces copper from copper sulfate, resulting in the formation of iron sulfate and copper metal.
d) Iron nails dissolve completely:
This statement is not true. Iron nails do not dissolve completely in the copper sulfate solution. Instead, they undergo a chemical reaction with copper sulfate to form iron sulfate and copper metal. The iron nails remain intact, although they may become thinner due to the loss of iron atoms during the reaction.
Conclusion:
Out of the given options, option 'D' is not true. Iron nails do not dissolve completely in the aqueous solution of copper sulfate. Instead, a displacement reaction occurs, resulting in the formation of iron sulfate and copper metal.
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When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer?.
When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer?.
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When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which of the following is not true about this reaction?a)Blue colour of the solution fades.b)Iron nails becomes brownish in colour.c)It is a displacement reaction.d)Iron nails dissolves completly.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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