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Zn acts as sacrifical or cathodic protec...

`Zn` acts as sacrifical or cathodic protect iont to prevent rusting of iron because

A

`E_(op)" of "Zn lt E_(op)" of "Fe`

B

`E_(op)" of "Zn gt E_(op)" of "Fe`

C

`E_(op)" of "Zn =E_(op)" of "Fe`

D

Zn is cheaper than iron

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The correct Answer is:
B
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MOTION-ELECTROCHEMISTRY-EXERCISE -1
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  2. The value of reaction quotient Q for the cell Zn(s)|Zn^(2+)(0.01M)||...

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  3. Zn acts as sacrifical or cathodic protect iont to prevent rusting of i...

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  4. In electrochemical corrosion of metals, the metal undergoing corrosion...

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  5. When a lead storage battery is charged it acts as:

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  7. One mole of electron passes through each of the solution of AgNO3, CuS...

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  8. Salts of A (atomic weight 7), B (atomic weight 27) and C (atomic weigh...

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  9. The density of Cu is 8.94 g cm^(-3). The quantity of electricity neede...

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  10. During electrolysis of an aqeous solution of sodium sulphate if 2.4 Lo...

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  11. What will happen during the electrolysis of aqu eous solution of CuSO(...

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  12. The charge required for the oxidation of one mole Mn3O4 into MnO4^2- i...

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  13. A solution of sodium sulphate in qater is electrolysed using inert ele...

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  14. When an aqueous solution of lithium chloride is electrolysed using gra...

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  15. A standard hydrogen electrode has zero electrode potential because :

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  16. The passage of current through a solution of certain electrolyte resul...

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  20. An aqueous solution of Na2SO4 is electrolysed using Pt electrodes. The...

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