Which of the following properties does the $CN^-$ ion possess: $(i)$ reducing agent,$(ii)$ oxidizing agent,and $(iii)$ complexing agent?

  • A
    $(iii), (i)$
  • B
    $(ii), (iii)$
  • C
    $(i), (ii)$
  • D
    $(i), (ii), (iii)$

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