Q30 / 150 · MHT CET 2021 (23 Sep Shift 1) · Chemistry

Which among following statements is true about $\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ ?

  • Correct answer
    A
    The complex ion carries -4 charge
  • B
    It is a netural complex
  • C
    The oxidation state of $\mathrm{Fe}$ in this complex is +6
  • D
    The C.N. of Fe in this complex is 10

Solution

$$ \begin{aligned} & \mathrm{x}-1 \times 6=-4 \\ & \mathrm{x}=+2 \\ & \end{aligned} $$ - The complex ion carries - 4 charge. - The $\mathrm{CN}$ of $\mathrm{Fe}$ in this complex is 6 .

Hence, the correct answer is option: 'A'.

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