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Given E(Zn^(2+)//Zn)^(@)=-0.76V,E(Fe^(2+...

Given `E_(Zn^(2+)//Zn)^(@)=-0.76V,E_(Fe^(2+)//Fe)^(@)=-0.44V` and `E_(Ni^(2+)// Ni)^(@)=-0.236V`. A galvanic cell cannot produce current by a spontaneous reaction `X+Y^(2+)toX^(2+)+Y` if

A

X=Zn and Y=Fe

B

X=Zn and Y=Ni

C

X=Fe and Y=Ni

D

X=Ni and Y=Zn

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BRILLIANT PUBLICATION-REDOX REACTION & ELECTROCHEMISTRY-QUESTION (ELECTROCHEMISTRY) (LEVEL -I) (HOMEWORK)
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  2. Which of the following will increase the voltage of the cell with folo...

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  3. The reduction potential of hydrogen electrode will be negative if :

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  4. Pt:H(2)(P(1))[H^(+)(1M)][|H^(+)(1M)|H(2)P(2)],Pt (Where P(1) and P(2) ...

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  5. Change in electrode potential of the half cell Al^(3+)//Al when Al^(3+...

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  6. The emf of a Daniel cell Zn|Zn^(2+)(0.001M)||Cu^(2+)(1M)|Cu at 298 K i...

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  7. Given E(Zn^(2+)//Zn)^(@)=-0.76V,E(Fe^(2+)//Fe)^(@)=-0.44V and E(Ni^(2+...

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  8. Given that Ni^(2+)|Ni=-0.25V,Cu^(2+)|Cu=0.34VAg^(+)|Ag=0.80V and Zn^(2...

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  9. Standard oxidation potential of Ni//NI^(2+) is 0.236V. This is combine...

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  10. What is the emf of the following cell Pt:H(2)(1"atm")|H^(+)(0.1M)||C...

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  11. Given E(Fe^(3+)//Fe)^(@)=-0.036V and E(fe^(2+)//Fe)^(@)=-0.44V . What ...

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  12. Cd^(2+)+2e^(-)toCd,E^(@)=-0.40V Ag^(+)+Ie^(-)toAg,E^(@)=0.80V There...

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  13. A galvanic cell is made of two hydrogen electrodes, one of which is th...

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  14. Conductivity of 0.02 M KCl 25^(@)C is 4xx10^(-3)ohm^(-1)cm^(-1). The r...

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  15. Which of the following statements are correct? 1. The oxidising powe...

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  18. A certain current liberates 0.5 g of hydrogen in 2 hours. How many gra...

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  20. Aq. CuSO(4) is electrolysed using Pt electrodes. The volume of O(2) ga...

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