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Mark the incorrect statement (s) for fu...

Mark the incorrect statement (s) for fuel cell

A

it is used in pollo space programme and for drinking water supply for astronauts

B

gydrogen and oxygen are bubbled through porous carbon electrode

C

catalyst like finely divided pt or pd are incorporated in to electrode

D

anode reaction is `O_(2)2H_(2)O(l)+4e^(-)rarr4OH^(-)(aq)`

Text Solution

Verified by Experts

The correct Answer is:
C
`H_(2)-O_(2)` fuel cell is used over ordinary cell because they do not cause any pollution and have high efficiency of 60 - 70 %
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROCHEMISTRY-Exercise 2
  1. For hydrogen oxygen fuel cell at atm and 298 K H(2)g+1/2O(2)(g)rarrH...

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  2. which of the following statement is true for the electrochemical ...

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  3. Standard free energies fo formation (in kJ/ mol) at 298 K are -237.2 -...

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  4. Which of the followng reaction is used to make a fuel cell

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  5. The cell reaction of the galvanic cell Cu(s)|Cu^(2+)(aq)||Hg^(2+)(aq...

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  6. Matach column I with column II related to the figure given below and...

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  7. Which of the following reaction cannot be a base for electrochemical...

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  8. The electrochemical cell stops working after sometimes because

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  9. In a hydrogen oxygen fuel cell combustion of hydrogen occurs to

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  10. In a galvanic cell the eletrons flow from

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  11. In the electrolytic cell flow of electrons is form

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  12. What is the anode and cathode in the given in the below

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  13. What is the product produced by this cell

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  14. Mark the incorrect statement (s) for fuel cell

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  15. Which of the following statement (s) is / are true for secondary ce...

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  16. Condisder the following reactions at 1100^(@)C (i)2C+O(2) rarr 2C...

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  17. E(cell)^(@) for some half cell reaction are given below on the basis o...

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  18. The standard electrode potentials for the ractions Ag^(+)(aq)+e^(-) ...

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  19. The equation representing the process by which standard reductin po...

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  20. The emf of the cell Ni|Ni^(2)(1.0 M)||Ag^(+)(1.0 M)|Ag E^(@) for N...

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