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An iron nail is dipped in copper sulphate solution. It is observed that
- a)The colour of the solution remain unchanged
- b)The colour of the solution becomes red .
- c)The colour of the solution turns to light green
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
An iron nail is dipped in copper sulphate solution. It is observed tha...
When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore, copper sulphate solution colour changes from blue to light green .
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An iron nail is dipped in copper sulphate solution. It is observed tha...
Introduction:
When an iron nail is dipped in copper sulphate solution, a chemical reaction takes place between the iron and the copper sulphate. This reaction results in the formation of a new compound and a change in the color of the solution. Let's understand the process in detail.
Explanation:
1. Reaction between iron and copper sulphate:
When the iron nail is dipped in copper sulphate solution, the following reaction takes place:
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
In this reaction, iron displaces copper from copper sulphate, resulting in the formation of iron sulphate and copper metal. This reaction is also known as a displacement reaction.
2. Change in color:
The color of the solution changes due to the formation of iron sulphate. Iron sulphate is a light green compound, which gives the solution a light green color. Therefore, the correct answer is option 'C' - the color of the solution turns light green.
3. Explanation of other options:
a) The color of the solution remains unchanged: This option is incorrect because a chemical reaction occurs, resulting in the formation of a new compound and a change in color.
b) The color of the solution becomes red: This option is incorrect because copper sulphate is blue in color, and the reaction with iron does not produce a red color.
d) None of these: This option is incorrect because the correct answer is option 'C', as explained above.
Conclusion:
When an iron nail is dipped in copper sulphate solution, the color of the solution turns light green due to the formation of iron sulphate. This is a result of a displacement reaction between iron and copper sulphate. It is important to understand the chemical reactions that occur during such experiments to grasp the concepts of displacement reactions and the formation of new compounds.
When an iron nail is dipped in copper sulphate solution, a chemical reaction takes place between the iron and the copper sulphate. This reaction results in the formation of a new compound and a change in the color of the solution. Let's understand the process in detail.
Explanation:
1. Reaction between iron and copper sulphate:
When the iron nail is dipped in copper sulphate solution, the following reaction takes place:
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
In this reaction, iron displaces copper from copper sulphate, resulting in the formation of iron sulphate and copper metal. This reaction is also known as a displacement reaction.
2. Change in color:
The color of the solution changes due to the formation of iron sulphate. Iron sulphate is a light green compound, which gives the solution a light green color. Therefore, the correct answer is option 'C' - the color of the solution turns light green.
3. Explanation of other options:
a) The color of the solution remains unchanged: This option is incorrect because a chemical reaction occurs, resulting in the formation of a new compound and a change in color.
b) The color of the solution becomes red: This option is incorrect because copper sulphate is blue in color, and the reaction with iron does not produce a red color.
d) None of these: This option is incorrect because the correct answer is option 'C', as explained above.
Conclusion:
When an iron nail is dipped in copper sulphate solution, the color of the solution turns light green due to the formation of iron sulphate. This is a result of a displacement reaction between iron and copper sulphate. It is important to understand the chemical reactions that occur during such experiments to grasp the concepts of displacement reactions and the formation of new compounds.
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An iron nail is dipped in copper sulphate solution. It is observed thata)The colour of the solution remain unchangedb)The colour of the solution becomes red .c)The colour of the solution turns to light greend)None of theseCorrect answer is option 'C'. 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 An iron nail is dipped in copper sulphate solution. It is observed thata)The colour of the solution remain unchangedb)The colour of the solution becomes red .c)The colour of the solution turns to light greend)None of theseCorrect answer is option 'C'. 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 An iron nail is dipped in copper sulphate solution. It is observed thata)The colour of the solution remain unchangedb)The colour of the solution becomes red .c)The colour of the solution turns to light greend)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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