Coloured Complexes Flashcards
(24 cards)
What is the colour of this ion / compound?
Cr2+ (aq)
Blue
What is the colour of this ion / compound?
Cr3+ (aq)
Green but violet when pure
What is the colour of this ion / compound?
Cr(OH)3 (s)
Grey-green
What is the colour of this ion / compound?
Cr2O3 (s)
Grey-green
What is the colour of this ion / compound?
[Cr(OH)6]3- (aq)
Dark green
What is the colour of this ion / compound?
CrO42- (aq)
Yellow (Chromate (VI))
What is the colour of this ion / compound?
Cr2O72- (aq)
Orange (Dichromate (VI))
What is the colour of this ion / compound?
Mn2+ (aq)
Pale pink / Colourless (titration)
What is the colour of this ion / compound?
MnO2 (s)
Black / Brown (titration) Manganese (IV) oxide
What is the colour of this ion / compound?
MnO42- (aq)
Green Manganate (VI)
What is the colour of this ion / compound?
MnO4- (aq)
Purple / Violet Manganate (VII)
What is the colour of this ion / compound?
Fe2+ (aq)
(pale) Green
What is the colour of this ion / compound?
Fe3+ (aq)
Yellow but violet when pure
What is the colour of this ion / compound?
Fe(OH)2 (s)
(dirty) Green
What is the colour of this ion / compound?
Fe(OH)3 (s)
Red-brown
What is the colour of this ion / compound?
[Fe(H2O)5(SCN)]2+ (aq)
Blood red
What is the colour of this ion / compound?
[Fe(CN)6]4- (aq)
Yellow
What is the colour of this ion / compound?
[Fe(CN)6]3- (aq)
Orange-brown
What is the colour of this ion / compound?
Cu2O (s)
Brick red
What is the colour of this ion / compound?
CuI (s)
white
What is the colour of this ion / compound?
Cu2+ (aq)
(light) blue
What is the colour of this ion / compound?
Cu(OH)2 (s)
(pale) blue
What is the colour of this ion / compound?
[CuCl4]2- (aq)
Yellow
What is the colour of this ion / compound?
[Cu(H2O)2(NH3)4]2+ (aq)
Deep blue
