The $CN^-$ ion exhibits which of the following properties towards metal components: $(a)$ Reducing agent,$(b)$ Oxidizing agent,$(c)$ Complexing agent?

  • A
    $(a), (b)$
  • B
    $(a), (b), (c)$
  • C
    $(c), (a)$
  • D
    $(b), (c)$

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