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Select the correct statements 1. Cath...

Select the correct statements
1. Cathode reaction in Ni-Cd cell is `NiO_(2(s))+2H_(2)O_((l))+2e^(-)toNi(OH)_(2)+2OH_(aq)^(-)`
2. The electrolyte used in Hg cell is mixture of `ZnCl_(2)` and `NH_(4)Cl`
3. Chemical reaction during rusting of iron is `2Fe_((s))+O_(2(g))+4H_(aq)^(+)to2Fe_(aq)^(2+)+2H_(2)O_((l))`
4. In electrical protection, metal used for preventing corosion become anode.

A

1,2,3,4

B

2,3,4

C

1,3,4

D

2,4

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BRILLIANT PUBLICATION-REDOX REACTION & ELECTROCHEMISTRY-QUESTION (ELECTROCHEMISTRY) (LEVEL -II)
  1. When a Galvanic cell produce current by a spontaneous reaction

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  2. A cell contains two copper electrodes. The negative electrode is in co...

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  3. The emf of the cell Pt, underset(1atm)(H(2(g)))|underset(.01M)(HA)||un...

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  4. For the cell Zn|Zn^(2+)(0.01M)||M((0.001M))^(2+)|M,E("cell")=0.29V. Wh...

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  5. Pt,H(2) (1bar)|HCl(aq)|AgCl(s)|Ag has cell potential 0.92V at 25^(@)C ...

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  6. The equilibrium constant of the reaction 2Fe^(3+)+2I^(-)to2Fe^(2+)+I(2...

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  7. Which of the following is/are true a.Specific conductance denotes co...

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  8. Molar conductivity of a 0.01 M solution of a weak monobasic acids HA i...

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  9. 0.025 M aq. Solution of methanoic acid has molar conductivity 46 S. cm...

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  10. From the following molar conductivities at infinite dilution lamda(m...

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  11. Ionisation constant of acetic acid is 2xx10^(-6). Molar conductivity o...

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  12. 0.04M solution of a weak dibasic acid is 4.23xx10^(-4)S.cm^(-1) The de...

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  13. At 298 K, the conductivity of a saturated solutioni of Agcl in water i...

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  14. One faraday current is passed through molten Na(2)O,MgO and Al(2)O(3)....

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  15. Consider the electrochemical cell between Ag(s) and Cl(2)(g) electrode...

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  16. How many cc of oxygen is released by a current of 2A flowing for 3 min...

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  17. A 250 mL sample of 0.20MCr^(3+) is electrolysed with a current of 96.5...

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  18. 0.02F current is drawn from a lead storage battery. Change in the mass...

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  19. A fuel cell involves combustion of methane at 1atm and 298 K CH(4(g)...

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  20. Select the correct statements 1. Cathode reaction in Ni-Cd cell is ...

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