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Which of the following is used as an electrolyte in an H2-O2 fuel cell?

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in Chemistry – Class 12 by (188k points)
Which of the following is used as an electrolyte in an H2-O2 fuel cell?

(a) KOH

(b) NH4OH

(c) Fe(OH)2

(d) Cu(OH)2

I had been asked this question in an online quiz.

My question comes from Electrochemistry topic in chapter Electrochemistry of Chemistry – Class 12

1 Answer

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Best answer
The correct choice is (a) KOH

Explanation: The general design of the H2-O2 fuel cell consists of porous carbon electrodes containing suitable catalysts (generally finely divided platinum and palladium) incorporated in them. Concentrated KOH or NaOH solution is placed between the electrodes to act as the electrolyte.

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