Identify a heteroleptic or homoleptic complex from its name or formula

1. A.
   Pentacarbonyliron(0)
2. B.
   Triamminetrinitrocobalt(III)
3. C.
   Tetraamminecopper(II) ion
4. D.
   Tetracyanonickelate(II) ion

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1. A.
   $\text{Na}_3[\text{Co(NO}_2)_6]$
2. B.
   $[\text{Fe(H}_2\text{O)}_5\text{(NCS)}]^{2+}$
3. C.
   $[\text{Cu(NH}_3)_4]^{2+}$
4. D.
   $[\text{Co(C}_2\text{O}_4)_3]^{3-}$

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1. A.
   Tetraamminediaquacobalt(III) chloride
2. B.
   Hexaamminecobalt(III) bromide
3. C.
   Potassium tetrahydroxozincate(II)
4. D.
   Tetracarbonylnickel(O)

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1. A.
   K$_3$[Al(C$_2$O$_4$)$_3$]
2. B.
   [Co(C$_2$O$_4$)$_3$]$^{3-}$
3. C.
   Na$_3$[AlF$_6$]
4. D.
   [Co(H$_2$O)(NH$_3$)$_5$]I$_3$

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1. A.
   $[\text{Co(NH}_3)_6]^{3+}$
2. B.
   $[\text{Co(NH}_3)_4\text{Cl}_2]^+$
3. C.
   $[\text{Pt(NH}_3)_2\text{Cl}_2]$
4. D.
   $[\text{Co(NH}_3)_5\text{Cl}]\text{SO}_4$

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1. A.
   Pentacarbonyliron(0)
2. B.
   Triamminetrinitrocobalt(III)
3. C.
   Tetraamminecopper(II) ion
4. D.
   Tetracyanonickelate(II) ion

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1. A.
   Diamminechloridonitrito-N-platinum (II)
2. B.
   Pentaamminecarbonatocobalt (III) chloride
3. C.
   Triamminetriaquachromium (III) chloride
4. D.
   Potassium trioxalatoaluminate (III)

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