Science Quiz / complex ion colours

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Can you name the complex ion colours?

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Score 0/28 Timer 10:00
complex ioncolour
(Co(Cl)4)2-
Al(H2O)3(OH)3
(Cr(H2O)6)2+
Fe(H2O)3(OH)3
(Co(H2O)6)­­2+
(Cu(H2O)6)2+
FeCO3
Cr(H2O)3(OH)3
(Cr2O7)2-
Cr3+
Co(OH)2(H2O)4
(Cr(NH)3)3+
CuCO3
Cr2+
complex ioncolour
(Cu(Cl)4)2-
(Fe(H2O)6)2+
Fe(H2O)4(OH)2
(Cu(NH3)4(H2O)2)2+
(Al(H2O)2(OH)4)-
CoCO3
(Cr(OH)6)3-
(Co(NH3)6)2+
(Co(NH3)6)3+
(CrO4)2-
(Al(H2O)6)2+
Cu(OH)2(H2O)4
(MnO4)-
(Fe(H2O)6)3+

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