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In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?
- a)It dissolves into the solution.
- b)It remains unchanged.
- c)Copper gets deposited on it.
- d)It turns into sulphate.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In the activity where you take 250 mL of distilled water in a beaker, ...
Understanding the Electrolysis Process
In the described activity, you are performing an electrolysis experiment using copper sulphate solution. When current is passed through the solution with copper plates, specific chemical reactions occur.
Role of Electrodes
- The two electrodes (copper plates) are connected to a battery.
- The plate connected to the negative terminal acts as the cathode, while the one connected to the positive terminal is the anode.
What Happens at the Cathode?
- When current flows, copper ions (Cu²⁺) from the copper sulphate solution migrate towards the cathode (negative plate).
- At the cathode, a reduction reaction occurs where Cu²⁺ ions gain electrons and are converted into solid copper.
Result of the Reaction
- This process leads to the deposition of copper metal on the negative plate.
- Therefore, as time passes, you will observe that the cathode plate becomes thicker due to the accumulation of copper.
Conclusion
- The correct answer is option 'C': Copper gets deposited on it.
- This phenomenon illustrates the principles of electrolysis and the behavior of ions in an electrolyte solution when exposed to an electric current.
In the described activity, you are performing an electrolysis experiment using copper sulphate solution. When current is passed through the solution with copper plates, specific chemical reactions occur.
Role of Electrodes
- The two electrodes (copper plates) are connected to a battery.
- The plate connected to the negative terminal acts as the cathode, while the one connected to the positive terminal is the anode.
What Happens at the Cathode?
- When current flows, copper ions (Cu²⁺) from the copper sulphate solution migrate towards the cathode (negative plate).
- At the cathode, a reduction reaction occurs where Cu²⁺ ions gain electrons and are converted into solid copper.
Result of the Reaction
- This process leads to the deposition of copper metal on the negative plate.
- Therefore, as time passes, you will observe that the cathode plate becomes thicker due to the accumulation of copper.
Conclusion
- The correct answer is option 'C': Copper gets deposited on it.
- This phenomenon illustrates the principles of electrolysis and the behavior of ions in an electrolyte solution when exposed to an electric current.
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In the activity where you take 250 mL of distilled water in a beaker, ...
This activity demonstrates electroplating. When current passes through the copper sulphate solution, free copper ions are attracted to the copper plate connected to the negative terminal, depositing a layer of copper on it, while copper from the other plate dissolves to maintain the solution’s composition.
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In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer?.
In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the activity where you take 250 mL of distilled water in a beaker, dissolve two teaspoonfuls of copper sulphate, add dilute sulphuric acid, clean two copper plates, connect them to a battery, and immerse them in the solution, what happens to the copper plate connected to the negative terminal after passing current?a)It dissolves into the solution.b)It remains unchanged.c)Copper gets deposited on it.d)It turns into sulphate.Correct answer is option 'C'. Can you explain this answer?.
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