How many of the following do NOT give the individual-ion tests of their metal ions in solution (that is, are complexes rather than double salts)? Carnallite, [Cu(NH₃)₄]SO₄·H₂O, K₄[Fe(CN)₆], potash alu

Question

How many of the following do NOT give the individual-ion tests of their metal ions in solution (that is, are complexes rather than double salts)? Carnallite, [Cu(NH₃)₄]SO₄·H₂O, K₄[Fe(CN)₆], potash alum, Zeise's salt, Mohr's salt, [Ni(en)₃]Cl₂, chrome alum, [Co(NH₃)₆]Cl₃

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Complexes: [Cu(NH₃)₄]SO₄·H₂O, K₄[Fe(CN)₆], Zeise's salt, [Ni(en)₃]Cl₂ and [Co(NH₃)₆]Cl₃. Carnallite, potash alum, Mohr's salt and chrome alum are double salts and dissociate fully. Count = 5.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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