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The solution in a beaker turns blue if...

The solution in a beaker turns blue if

A

Cu electrode is placed in `ZnSO_(4)` solution

B

Cu electrode is placed in `AgNO_(3)` solution

C

Cu electrode is placed in `Al_(2)(SO_(4))_(3)` solution

D

Cu electrode is placed in `FeSO_(4)` solution

Text Solution

Verified by Experts

The correct Answer is:
B
Cu being more reactive than Ag due to lower electrode potential, displaces Ag from `AgNO_(3)` solution. It is dissolved in the solution in the form of `Cu^(2+)` ions.
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NCERT FINGERTIPS-REDOX REACTIONS-Redox Reactions And Electrode Processes
  1. What will be the products of electrolysis of AgNO(3) solution in water...

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  2. In an oxidation process for a cell, M(1)rarr M(1)^(n+)+n e^(-), ...

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  3. Which of the following reactions takes place at anode ?

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  4. Which of the following will act as cathode when connected to standard ...

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  5. Which of the following reaction does not take place ?

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  6. निम्नलिखित संभव अभिक्रियाओं की सहायता से Mg,Zn,Cu और Ag को उनके धत्ते...

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  7. Which of the following is not a correct statement about electrochemica...

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  8. If a spoon of copper metal is placed in a solution of FeSO(4), what wi...

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  9. The solution in a beaker turns blue if

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  10. The standard electrode potential a Ag^(+)//Ag is +0.80 V and of Cu^(2+...

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  11. The E^(@) values of redox complex of halogens are given. Based on thes...

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  12. Arrange the following metals in the order in whiCHM they displace eaCH...

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  13. Arrange the following metals in increasing order of their reducing po...

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  14. A metal X displaces nickel from nickel sulphate solution but does not ...

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  15. Given E(Ag^(+)//Ag)^(@)=+0.80 V, E(Cu^(2+)//Cu)^(@)=+0.34 V, E(Fe^(3+)...

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  16. निम्नलिखित आयनो को इलेक्ट्रॉन ग्रहण करने की बढ़ती क्षमता के क्रम में लि...

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  17. What will be the order of decreasing reducing nature for the given met...

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  18. Which of the following is the strongest oxidizing agent ?

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  19. Fluorine is the best oxidising agent because it has

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  20. Which of the following halides is most acidic ?

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