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Assertion : Zn metal is formed when a Cu...

Assertion : Zn metal is formed when a Cu plate in dipped in `ZnSO_(4)` solution.
Reason : Cu being placed above Zn in electrochemical series.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Zn metal is formed when a Cu plate is dipped in ZnSO4 solution." - This implies that a reaction occurs where zinc ions in the solution are reduced to form solid zinc metal on the copper plate. 2. **Analyzing the Reason**: - The reason given is "Cu being placed above Zn in the electrochemical series." - In the electrochemical series, metals are arranged according to their reactivity. A metal that is higher in the series can displace a metal that is lower in the series from its compound. 3. **Checking the Position in the Electrochemical Series**: - In the electrochemical series, zinc (Zn) is actually placed above copper (Cu). This means zinc is more reactive than copper. - Therefore, copper cannot displace zinc from its compound (ZnSO4) because it is less reactive. 4. **Conclusion**: - Since copper cannot displace zinc from zinc sulfate, no zinc metal will be formed when a copper plate is dipped in ZnSO4 solution. - Thus, the assertion is false. - The reason is also false because it incorrectly states the position of copper and zinc in the electrochemical series. 5. **Final Answer**: - Both the assertion and the reason are false.
To solve the question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Zn metal is formed when a Cu plate is dipped in ZnSO4 solution." - This implies that a reaction occurs where zinc ions in the solution are reduced to form solid zinc metal on the copper plate. ...
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Knowledge Check

  • Assertion : Cu react with HCl & form H_(2) gas Reason : Cu above then hydrogen in electro chemical series

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is False.
    D
    If both Assertion & Reason are False.

  • Assertion (A): Cu liberates H_(2)(g) from a dilute solution of HCl . Reason (R): Hydrogen is below Cu in the electrochemical series.

    A
    If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`.
    B
    If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`.
    C
    If `(A)` is correct, but `(R)` is incorrect.
    D
    If both `(A)` and `(R)` are incorrect.

  • The correct order of reactivity of K,Mg,Zn and Cu with water according to the electrochemical series is

    A
    `KgtMggtZngtCu`
    B
    `MggtZngtCugtK`
    C
    `KgtZngtMggtCu`
    D
    `CugtZngtMggtK`