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D and F Block Elements question

2017 · 8 Apr · Shift 1 · Q18
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D and F Block Elements question

2017 · 8 Apr · Shift 1 · Q18

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
The pair of compounds having metals in their highest oxidation state is :
  1. A
    MnO2MnO_2MnO2​ and CrO2Cl2CrO_2Cl_2CrO2​Cl2​
  2. B
    [NiCl4]2−[NiCl_4]^{2-}[NiCl4​]2− and [CoCl4]2−[CoCl_4]^{2-}[CoCl4​]2−
  3. C
    [Fe(CN)6]3−[Fe(CN)_6]^{3-}[Fe(CN)6​]3− and [Cu(CN)4]2−[Cu(CN)_4]^{2-}[Cu(CN)4​]2−
  4. D
    [FeCl4]−[FeCl_4]^-[FeCl4​]− and Co2O3Co_2O_3Co2​O3​
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