What is the number of moles of electrons gained by one mole of oxidizing agent in the following redox reaction?
$Zn_{(s)} + 2HCl_{(aq)} \longrightarrow ZnCl_2(aq) + H_2(g)$

  • A
    $4$
  • B
    $3$
  • C
    $2$
  • D
    $1$

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