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Which of the following statements is tru...

Which of the following statements is true for fuel cells ?

A

They are more efficient

B

They are free from pollution

C

They run till reactants are active

D

All of these

Text Solution

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The correct Answer is:
D
Fuel cells are more efficient, free from pollution and they run till reactants are active.
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ERRORLESS-ELECTROCHEMISTRY-NCERT BASED QUESTIONS (CELL CONSTANT AND ELECTROCHEMICAL CELLS)
  1. A secondary cell is one :

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  2. In dry cell, what acts as a negative electrode?

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  3. Which of the following statements is true for fuel cells ?

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  4. The reaction, (1)/(2)H(2)(g) + AgCl(s) H^(+)(aq)+Cl^(-) (aq)+Ag(s). Oc...

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  5. Which of the following statement is not correct about an inert electro...

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  6. An electrochemical cell an behave like an electrolytic cell when

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  7. Which of the following reactions canot be a base for electrochemical c...

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  8. The electrolyte used in Leclanche cell is-

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  9. In a galvanic cell, the electrons flow from :

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  10. If the half-cell reaction A+e^(-)toA^(-) has a large negative reductio...

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  11. Which of the following statements is true for an electrochemical cell ...

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  12. A depolarizer used in dry cell is :

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  13. Which of the following is not a function of salt bridge ?

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  14. The efficiency of a fuel cell is given by:

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  15. The electrode reactions that takes place at the anode of CH(4)-O(2) fu...

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  16. In which cell the free energy of a chemical reaction is directly conve...

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  17. While charging the lead storage battery:

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  18. When a lead storage battery is charged:

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  19. Which coloruless gas evolves when NH(4)CI reacts with zinc in a dr...

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  20. When a lead storage battery is discharged

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