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Which of the following statements is co...

Which of the following statements is correct for fuel cells

A

They are sued in automobiles

B

they are pollution free

C

the efficiency is increased by adding better catalysts and electrolyte

D

all of the above

Text Solution

Verified by Experts

The correct Answer is:
D
Fuel cellls act as better catalysts and electrolytes for increasing the efficiency of fuel cell they have been used in atutomobiles on an expermental basis fuel cells are pollution free
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROCHEMISTRY-Exercise 1
  1. What will be the emf for the given half cell Pt|H(2)(P(1)|H^(+)(...

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  2. In the process of rusting iron get

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  3. When lead stroage battery discharges

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  4. Galvanic cell is a device in which

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  5. Which of the following is used widely in the manufacture of lead stora...

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  6. While charging the lead storage battery:

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  7. The process of zinc plating on iron sheet is known as

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  8. In H(2)-O(2) fuel cell, the reaction occurring at cathode is

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  9. Corrosion of iron is essentially an electrochemical phenomeonon wher...

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  10. What is the compostion of rust ?

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

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  12. The acid used in lead storage battery is

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  13. On the basis of electrochemical theory of aqueous corrosion, the react...

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  14. The batteris which cannot be reused again are

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  15. Dry cell is a

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  16. Which of the following statement in incorrect for dry cell ?

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  17. Which among the following cell has longer life and more expensive ...

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  18. Match the terms of column I and column II and choose the correct op...

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  19. Which of the following statements is correct for fuel cells

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  20. In a hydrogen oxygen uel cell, combustion of hydrogen occurs to

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