When $Zn$ is added to $CuSO_4$ solution,$Cu$ is obtained. This is due to:

  • A
    Oxidation of $Cu^{2+}$
  • B
    Reduction of $Cu^{2+}$
  • C
    Hydrolysis of $CuSO_4$
  • D
    Ionization of $CuSO_4$

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