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Which of the following reactions is used...

Which of the following reactions is used to make a fuel cell ?

A

`Cd_((s)) + 2Ni(OH)_(3(s)) to CdO(s) + 2Ni(OH)_(2(s)) + H_2O_((l))`

B

`Pb_((s)) + PbO_(2(s)) + 2H_2SO_(4(aq)) to 2PbSO_(4(s)) + 2H_2O_((l))`

C

`2H_(2(g)) + O_(2(g)) to 2H_2O_((l))`

D

`2Fe_((s)) + O_(2(g)) + 4H_((aq))^(2+) + 2H_2O_((l))`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-ELECTROCHEMISTRY -LEVEL-I ( EXERCISE-I)
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  2. For a spontaneous reaction the DeltaG , equilibrium constant (K) and E...

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  3. For the reaction Pt// H2 (1 atm) // H^(+) (aq) // // Cl^(-) (aq) // Ag...

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  4. The relationship between free energy and electrode potential is

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  5. When an electric cell is charged, then

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  6. When lead storage battery is discharged

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  7. When lead storage battery is charged

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  8. During the charging of lead storage battery, the reaction occuring at ...

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  9. With respect to fuel cell prepared from H2 and O2 gases, the false sta...

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  10. Hydrogen - oxygen fuel cells are used in space prograins to supply

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  11. In a hydrogen - oxygen fuel cell, combustion of hydrogen occurs to

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  12. Which of the following reactions is used to make a fuel cell ?

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  13. Corrosion is basically a/an

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  14. In which of the following will the corrosion of iron be most rapid ?

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  15. Which of the following metals acts as a sacrificial anode for iron art...

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  16. The composition of rust is

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  17. Zinc is used to protect corrosion of iron because

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  18. The Zn acts as sacrificial or cathodic protection to prevent rusting o...

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  19. The corrosion of iron object is favoured by

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  20. Galvanization includes plating iron with

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