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The standard reducution potentials of Zn...

The standard reducution potentials of `Zn^(2+)|Zn,Cu^(2+)|Cu and Ag^(+)|Ag` are respectively `-0.76,0.34` and `0.8V`. The following cells were constructed.
`Zn|Zn^(2+)"||"Cu^(2+)|Cu`
`Zn|Zn^(2+)"||"Ag^(+)|Ag`
`Cu|Cu^(2+)"||"Ag^(+)|Ag`
What is the correct order `E_("cell")^(0)` of these cell?

A

`bgtcgta`

B

`bgtagtc`

C

`agtbgtc`

D

`cgtagtb`

Text Solution

Verified by Experts

The correct Answer is:
D
`E_(cell)^(@)=E_("cathode")-E_("anode")^(@)`
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NARAYNA- ELECTRO CHEMISTRY-LEVEL-II(C.W)
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  3. The standard reducution potentials of Zn^(2+)|Zn,Cu^(2+)|Cu and Ag^(+)...

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  4. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

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  5. For the Daniel Cell involving the cell reaction Zn((s))+Cu((aq))^(+2)...

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  6. The position of some metals in the electrochemical series in dectreasi...

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  7. In the Daniel cell which change increases the cell EMF

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  8. The chemical reaction 2AgCl("(fused)")+H(2(g))rarr2HCl((aq))+2Ag((s)...

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  9. The following are some statements about normal hydrogen electrode a)...

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  10. The solution of CuSO(4) in which copper rod is immersed is diluted to ...

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  11. The standard reduction potential of Zn^(2+)|Zn and Cu^(2+)|Cu are -0.7...

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  12. E(Zn^(2+)//Zn)^(0)=-0.76V The EMF of the cell Zn//Zn((1M))^(2+)"||"HCl...

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  13. The emf of a Daniell cell at 298 K is E(1) Zn|ZnSO(4)(0.01 M)||CuSO(...

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  14. Given that E(H(2)O|H(2)|Pt) =0 at 298K. The pressure of H(2) gas would...

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  15. Which graph correctly correlates E(cell) as a function of concentratio...

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  16. In the electrochemical cell H(2)(g),"1 atm"|H^(+)(1M)"||"Cu^(2+)(1M)...

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  17. The potential of the cell containing two hydrogen electrodes as repres...

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  18. The emf of the cell, Zn|Zn^(2+)(0.01M)|| Fe^(2+)(0.001M) | Fe at 2...

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  19. For the cell reaction Cu^(2+)(C(1),aq.)+Zn(s)hArrZn^(2+)(C(2),aq)+Cu...

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  20. Which of the following reactions occurs at the anode during the rechar...

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