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Copper coin is kept immersed in silver nitrate solution for some time. What change will take place in colour of the solution?
- a)Colour of solution will turn to green
- b)Colour of solution will turn to white
- c)Colour of solution will turn to blue
- d)Colour of solution will turn to red
- e)None of the above/More than one of the above
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Copper coin is kept immersed in silver nitrate solution for some time....
The Colour of the solution will turn blue.
EXPLANATION
EXPLANATION
- When a copper coin is kept immersed in silver nitrate solution, silver will deposit on the copper coin and the colour of the solution will turn blue.
- This is because copper is more reactive than silver, it displaces silver from silver sulphate solution and forms copper sulphate and silver.
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Copper coin is kept immersed in silver nitrate solution for some time....
The Color Change in the Solution when a Copper Coin is Immersed in Silver Nitrate Solution
When a copper coin is immersed in a silver nitrate solution, a chemical reaction occurs between the copper and silver ions in the solution. This reaction leads to a change in the color of the solution. The correct answer to the question is option 'C', which states that the color of the solution will turn to blue.
Explanation:
1. Reaction between Copper and Silver Nitrate
- When a copper coin is placed in a silver nitrate solution, a displacement reaction takes place.
- The copper atoms from the coin react with the silver ions (Ag+) present in the solution.
- The reaction can be represented as follows:
Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)
2. Formation of Copper Nitrate
- As a result of the reaction, copper nitrate (Cu(NO3)2) is formed in the solution.
- Copper nitrate is a blue-colored compound, which imparts a blue color to the solution.
- This change in color is a direct consequence of the formation of copper nitrate.
3. Explanation of Other Options:
- Option 'A' states that the color of the solution will turn to green. This is not correct because the formation of copper nitrate leads to a blue color, not green.
- Option 'B' states that the color of the solution will turn to white. This is not correct because the reaction does not involve the formation of any white compounds.
- Option 'D' states that the color of the solution will turn to red. This is not correct because there are no reactions or compounds involved that would cause a red color.
- Option 'E' states that none of the above options are correct. This is not correct because option 'C' is the correct answer, as explained above.
Therefore, the correct answer is option 'C', which states that the color of the solution will turn to blue when a copper coin is immersed in a silver nitrate solution.
When a copper coin is immersed in a silver nitrate solution, a chemical reaction occurs between the copper and silver ions in the solution. This reaction leads to a change in the color of the solution. The correct answer to the question is option 'C', which states that the color of the solution will turn to blue.
Explanation:
1. Reaction between Copper and Silver Nitrate
- When a copper coin is placed in a silver nitrate solution, a displacement reaction takes place.
- The copper atoms from the coin react with the silver ions (Ag+) present in the solution.
- The reaction can be represented as follows:
Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)
2. Formation of Copper Nitrate
- As a result of the reaction, copper nitrate (Cu(NO3)2) is formed in the solution.
- Copper nitrate is a blue-colored compound, which imparts a blue color to the solution.
- This change in color is a direct consequence of the formation of copper nitrate.
3. Explanation of Other Options:
- Option 'A' states that the color of the solution will turn to green. This is not correct because the formation of copper nitrate leads to a blue color, not green.
- Option 'B' states that the color of the solution will turn to white. This is not correct because the reaction does not involve the formation of any white compounds.
- Option 'D' states that the color of the solution will turn to red. This is not correct because there are no reactions or compounds involved that would cause a red color.
- Option 'E' states that none of the above options are correct. This is not correct because option 'C' is the correct answer, as explained above.
Therefore, the correct answer is option 'C', which states that the color of the solution will turn to blue when a copper coin is immersed in a silver nitrate solution.
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