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A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:
- a)The colour of the copper strip changed.
- b)The copper strip remained as it was.
- c)The copper strip became thicker.
- d)The copper strip became thinner.
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A strip of copper was placed in a beaker containing zinc sulphate solu...
A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution.
But copper can not lose electrons easily as compared to zinc and do not result in any reaction.
Thus there will no color change as no chemical reaction take place between the two.
Most Upvoted Answer
A strip of copper was placed in a beaker containing zinc sulphate solu...
First of all yaar.....wrong answer ko 4 upvotes mile hai....howw....amazing..........just go and see reactive series of metals....copper is less reactive metal than that of zinc so copper cant displace zinc from its compound.........so it will remains same correct ans is (B)
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A strip of copper was placed in a beaker containing zinc sulphate solu...
Explanation:
When a strip of copper is put in a solution of zinc sulphate, a redox reaction takes place between the copper and zinc ions in the solution. The copper atoms from the strip lose electrons and become copper ions, which dissolve in the solution. At the same time, zinc ions in the solution gain electrons and become zinc atoms, which deposit on the surface of the copper strip.
Reason for option 'B':
The copper strip remains as it was because copper is less reactive than zinc. Copper does not lose electrons easily and is not oxidized in the presence of zinc ions in the solution. Therefore, the copper strip does not change its appearance or thickness.
Reasons for other options:
a) The colour of the copper strip changed: This option is incorrect because copper does not react with zinc sulphate and hence there is no change in the color of the copper strip.
c) The copper strip became thicker: This option is incorrect because copper is not deposited on the strip, instead, zinc is deposited on the copper strip.
d) The copper strip became thinner: This option is incorrect because copper ions dissolve in the solution and do not form a deposit on the strip.
When a strip of copper is put in a solution of zinc sulphate, a redox reaction takes place between the copper and zinc ions in the solution. The copper atoms from the strip lose electrons and become copper ions, which dissolve in the solution. At the same time, zinc ions in the solution gain electrons and become zinc atoms, which deposit on the surface of the copper strip.
Reason for option 'B':
The copper strip remains as it was because copper is less reactive than zinc. Copper does not lose electrons easily and is not oxidized in the presence of zinc ions in the solution. Therefore, the copper strip does not change its appearance or thickness.
Reasons for other options:
a) The colour of the copper strip changed: This option is incorrect because copper does not react with zinc sulphate and hence there is no change in the color of the copper strip.
c) The copper strip became thicker: This option is incorrect because copper is not deposited on the strip, instead, zinc is deposited on the copper strip.
d) The copper strip became thinner: This option is incorrect because copper ions dissolve in the solution and do not form a deposit on the strip.
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A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer?
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A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer?.
A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer?.
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A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip next day, it was noticed that:a)The colour of the copper strip changed.b)The copper strip remained as it was.c)The copper strip became thicker.d)The copper strip became thinner.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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