Which of the following is used as an electrolyte in an $H_{2} - O_{2}$ fuel cell?

C u (O H)_{3}

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K O H

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F e (O H)_{2}

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N H_{4} O H

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Solution

The correct option is B $K O H$
The general design of the $H_{2} - O_{2}$ fuel cell consist of porous carbon electrodes containing suitable catalysts (generally finely didvided platinum and palladium) incorporated in them . Concentrated $K O H o r N a O H$ is placed between the electrodes to act as a electrolyte .

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Similar questions

Which cell is used to convert the chemical energy of H₂ gas into electrical energy?

H_{2}

O_{2}

A fuel cell is:

I.A voltaic cell in which continuous supply of fuels are sent at anode to perform oxidation.

II. A voltaic cell in which fuels such as :

$C H_{4}, H_{2}$ and CO are used up at anode.

III. One which involves the reaction of $H_{2} O_{2}$ fuel cell such as:

Anode : $2 H_{2} + 4 ⊖ O H \to 4 H_{2} O (l) + 4 e^{-}$

Cathode : $O_{2} + 2 H_{2} O (l) + 4 e^{-} \to 4 ⊖ O H$

IV. The efficiency of $H_{2} - O_{2}$ fuel cell is $70$ to $75 %$ .

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