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(A) : If E^(0) " of " Cu^(2+)//Cu=+0.34V...

(A) : If `E^(0) " of " Cu^(2+)//Cu=+0.34V and E^(0) " of "Ag^(+) // Ag = + 0.80 V ` then galvanic cell constructed from these is `Ag//Ag^(+) // // Cu^(2+ ) // Cu`
(R) : In any galvanic cell the reaction that takes place is a redox reaction Electrode potentials & EMF

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ELECTROCHEMISTRY -LEVEL-I ( EXERCISE-I)
  1. For spontanity of a cell, which is correct ?

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  2. If the cell reaction is spontaneous

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  3. (A) : If E^(0) " of " Cu^(2+)//Cu=+0.34V and E^(0) " of "Ag^(+) // Ag ...

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  4. The metal that cannot displace hydrogen from dilute hydrochloric acid ...

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  5. A standard hydrogen electrode has zero electrode potential because

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  6. The following statements about electro chemical series are i) the ...

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  7. The following are some statements about normal hydrogen electrode ...

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  8. Which defines the standard reduction electrode potential of Zn^(2+) io...

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  9. (A) : Lithium has less electrode potential than caesium (R) : Hydr...

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  10. The reference electrode is made by using

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  11. The more electro positive element has

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  12. The correct match is

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  13. A smuggler could not carry gold by depositing iron on the gold surface...

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  14. Standard reduction electrode potential of three metals A, B and C are ...

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  15. The difference of potential of two electrodes in a galvanic cell is kn...

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  16. Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because

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  17. When Zn piece is kept in CuSO4 solution, copper gets precipitated beca...

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  18. For I2 + 2e to 2I^(-) , standard reduction potential = + 0.54 volt. Fo...

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  19. Beryllium is placed above magnesium in the Il group. When beryllium du...

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  20. E^(@) for Fe^(2+) + 2e to Fe is -0.44 V , E^(@) for Zn^(2+) + 2e to ...

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