In a typical fuel cell,the reactant $(R)$ and product $(P)$ are

  • A
    $R=H_{2(g)}, N_{2(g)}; P=NH_{3(aq)}$
  • B
    $R=H_{2(g)}, O_{2(g)}; P=H_{2}O_{2(l)}$
  • C
    $R=H_{2(g)}, O_{2(g)}; P=H_{2}O_{(l)}$
  • D
    $R=H_{2(g)}, O_{2(g)}, Cl_{2(g)}; P=HClO_{4(aq)}$

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