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Coordination Compounds question

2021 · Shift 2 · Q5
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  5. /2021 · Shift 2 · Q5

Coordination Compounds question

2021 · Shift 2 · Q5

JEE AdvancedChemistryCoordination CompoundsMultiple correct+4 / −2
The pair(s) of complexes wherein both exhibit tetrahedral geometry is(are) (Note : py = pyridine) Given : Atomic numbers of Fe, Co, Ni and Cu are 26, 27, 28 and 29, respectively)
  1. A
    [FeCl4]−[FeCl_4]^-[FeCl4​]− and [Fe(CO)4]2−[Fe(CO)_4]^{2-}[Fe(CO)4​]2−
  2. B
    [Co(CO)4]−[Co(CO)_4]^-[Co(CO)4​]− and [CoCl4]2−[CoCl_4]^{2-}[CoCl4​]2−
  3. C
    [Ni(CO)4{}_44​] and [Ni(CN)4{}_44​]2−{}^{2-}2−
  4. D
    [Cu(py)4{}_44​]+{}^++ and [Cu(CN)4{}_44​]3−{}^{3-}3−
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