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STD 12 - 5. Co-ordination chemistry — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
Which of the following name formula combinations is not correct ?

               Formula

  • A
    $K_2[Pt(CN)_4]$ $\to $ Potassium tetracyanoplatinate $(II)$
  • B
    $[Mn(CN)_5]^{2-}$ $\to $ Pentacyanomagnate $(II)$ ion
  • ✓
    $K[Cr(NH_3)_2Cl_4]$ $\to $ Potassium diammine tetrachlorochromate $(III)$
  • D
    $[Co(NH_3)_4(H_2O)I]SO_4$ $\to $ Magnetron value
✓

Answer

Correct option: C.
$K[Cr(NH_3)_2Cl_4]$ $\to $ Potassium diammine tetrachlorochromate $(III)$
c
Here, since $H_{2} O$ is neutral ligand, it's oxidation state will be zero. $N O$ has charge of +1 and total complex compound has a charge of +2 thus the oxidation state of iron in this compound will be 1

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