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Write cell representation for following ...

Write cell representation for following cells
`Cr_2O_2^(2-)(a)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+2Cr^(3+)(aq)+7H_2O(l)`

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The correct Answer is:
B, C
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The cell reaction Cr_2O_7^(2-)(aq)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+7H_2O(l) is best represented by:

Fe^(2+)(aq.)+Cr_(2)O_(7)^(2-)+H^(+) to Fe^(3+)(aq.)+Cr^(3+)

Choose correct statements (s) regarding the following reactions. Cr_(2)O_(7)^(2-)(aq)+3SO_(3)^(2-)(aq)+8H^(+) rarr 2Cr^(3+)(aq)+3SO_(4)^(2-)(aq)+4H_(2)O

Complete the chemical equations : Cr_2O_7^(2-) (aq) + Fe^(2+)(aq) + H^(+)(aq) to

Make complete cell diagrams of the following cell reactions (a). Cd^(2)(aq)+Zn(s)toZn^(2+)(aq)+Cd(s) (b). 2Ag^(+)(aq)+H_(2)(g)to2H^(+)(aq)+2Ag(s) (c). Hg_(2)Cl_(2)(s)+Cu(s)toCu^(2+)(aq)+2Cl^(-)(aq)+2Hg(l) (d). Cu_(2)O_(7)^(2-)(aq)+14H^(+)(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+7H_(2)O(l)

(a) Complete the following chemical equations: (i) Cr_(2) O_(7)^(2-) (aq) + H_(2) S(g) + H^(+) (aq) to (ii) Cu^(2+)(aq) + I^(-) (aq) to (b) How would you account for the following : (i) The oxidising power of oxoanions are in the order VO_(2)^(+) lt Cr_(2)O_(7)^(2-) lt Mn O_(4)^(-) (ii) The third ionization enthalpy of manganess (Z = 25) is exceptionally high. (iii) Cr^(2+) is a stronger reducing agent than Fe^(2+) .

MOTION-ELECTROCHEMISTRY-EXERCISE-3
  1. Write cell representation for following cells Cd^(2+)(aq)+Zn(s)toZn^...

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  2. Write cell representation for following cells 2Ag^+(aq)+H2(g)to 2H^+...

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  3. Write cell representation for following cells Cr2O2^(2-)(a)+14H^+(aq...

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  4. For the reaction : 2Ce^(4+)+Co rarr 2Ce^(3+)+Co^(2+), E(cell)^(@) = 1....

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  5. Determine the standard reduction potential for the half reaction : C...

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  6. Is 1.0 M H^+ solution under H2SO4 at 1.0 atm capable of oxidising silv...

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  7. If for the half reactions Cu^(2+)+e^- to Cu^+" "E^0=0.15V ...

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  8. If E(Fe^(2+)|Fe)^0=-0.44V,E((Fe^3+)||Fe^(2+))^0=0.77. Calculate E(Fe^(...

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  9. Calculate the EMF of a Daniel cell when the concentartion of ZnSO(4) a...

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  10. For the cell reaction, Mg|Mg^(2+) (aq.)||Ag^(+) (aq.)|Ag calculate...

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  11. The EMF of the cell M|M^(n+)(0.2M)||H^(+)(1M)|H(2)(g)(1atm), Pt at 25^...

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  12. Equinormal solutions of two weak acids HA(pK(a)=3) and HB(pK(a)=5) are...

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  13. Calculate E^0 and E for the cell Sn||Sn^(@+)(1M)||Pb^(2+)(10^(-3)M)|Pb...

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  14. At what concentration of Cu^(2+) in a solution of CuSO4 will be electr...

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  15. A zinc electrode is placed in 0.1M solution of ZnSO(4) at 25^(@)C. Ass...

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  16. Calcualte the EMF of the following cell Zn|Zn^(2+)(0.01M)||Zn^(2+)(0...

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  17. Calcualte the EMF of the cellj Zn-Hg(c1M)|Zn^(2+)(aq)|Hg-Zn(c2M) a...

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  18. Calculate pH using following cell : underset(1 atm)(Pt(H2)|underset(...

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  19. Calcualte the equilibrium constant for the reaction Fe^(2+)+Ce^(4+)<...

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  20. Calculate the equilibrium constant for the reaction Fe+ CuSO4→ FeSO4...

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