Electrodes, electrolyte and reactants of the hydrogen-oxygen fuel cell

1. A.
   $\text{H}_2(g)$ serves as fuel
2. B.
   $\text{O}_2(g)$ is an oxidising agent
3. C.
   Platinum wires are used as anode and cathode
4. D.
   Hot aqueous KOH solution acts as an electrolyte

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1. A.
   $H_{2}$
2. B.
   $O_{2}$
3. C.
   $H^{+}$
4. D.
   NaOH

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1. A.
   KCl
2. B.
   KOH
3. C.
   $\mathrm{H_2SO_4}$
4. D.
   $\mathrm{NH_4Cl}$

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