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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Oxidation number of $Fe$ in ${K_3}[Fe{(CN)_6}]$ is
  • A
    $+2$
  • ✓
    $+3$
  • C
    $+1$
  • D
    $+4$
✓

Answer

Correct option: B.
$+3$
b
(b) $\mathop {{K_3}[Fe{{(CN)}_6}]}\limits^{ * \,\,\,\,\,\,\,} $

$1 \times 3 + x + ( - 1 \times 6) = 0$

$3 + x - 6 = 0$; $x = + 3$.

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