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Which incorrect about fuel cells ?...

Which incorrect about fuel cells ?

A

Cells continuously run as long as fuels are supplied

B

These are more efficient and free from pollution

C

These are used to provide power and drinking water to astronauts in space programme

D

Fuel cell has low efficiency

Text Solution

Verified by Experts

The correct Answer is:
D
Efficiency very high .
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NIKITA PUBLICATION-ELECTROCHEMISTRY -Questions From Competitive Exam
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  4. {:("Electrolyte",^^.^(oo)(Scm^(2)mol^(-1))),(KCl,149.9),(KNO(3),145.0)...

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  5. At certain temperature and infinite dilution , the equivalent conducta...

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  6. A solution of concentration 'C' g equiv/litre has a specific resistanc...

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  7. The solution of CuSO(4) in which copper rod is immersed is diluted to ...

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  8. The standard oxidation potential E^@ for the half cell reaction are ...

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  10. The correct order of E(M^(2+)//M)^(@) Values with negative sign for th...

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  11. The concentration of potassium ions inside a biological cell is at lea...

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  12. The concentration of potassium ions inside a biological cell is at lea...

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  13. For the reduction of silver ions with copper metal, the standard cell ...

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  14. An increase in equivalent conductance of a strong electrolyte with dil...

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  16. Consider the following relations for emf of a electrochemical cell (...

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  17. The equilibrium constant (K) for the reaction Cu(s)+2Ag^(+) (aq) rar...

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  18. E^(@) for Fe//Fe^(2+) is +0.44 V and E^(@) for Cu//Cu^(2+) is -0.32 V....

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  19. For the electrochemical cell, M|M^(+) ||X^(-)|X, E(M^(+)//M)^(@) = 0.4...

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