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Question

Which of the following complexes is/are incorrectly named according to IUPAC?

A
[CoCl2(CH3CH2NH2)2(CH3NH2)2] Dichloridodiethylaminedimethylaminecobalt(II)
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B
[Co(NH3)4Cl2]2SO4 Tetraaminedichloridocobalt(III)sulfate
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C
Fe3[Fe(CN)6]2
Ferroferricyanide
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D
Ca[CrNH3Br2((CH3)2NH)I2]2
Calcium amminedibromidodimethylaminediiodidochromate (III)
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Solution

The correct options are
A [CoCl2(CH3CH2NH2)2(CH3NH2)2] Dichloridodiethylaminedimethylaminecobalt(II)
B [Co(NH3)4Cl2]2SO4 Tetraaminedichloridocobalt(III)sulfate
C Fe3[Fe(CN)6]2
Ferroferricyanide
a) [CoCl2(CH3CH2NH2)2(CH3NH2)2]
dichloridobisethylaminebismethylaminecobalt(II)
b) [Co(NH3)4Cl2]2SO4
Tetraamminedichloridocobalt(III)sulfate
c) Fe3[Fe(CN)6]2
Ferrous hexacyanidoferrate(III)
d) Ca[CrNH3Br2((CH3)2NH)I2]2
Calcium amminedibromidodimethylaminediiodidochromate (III)

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