Coloured Complexes Flashcards by casper soong | Brainscape

Q

What is the colour of this ion / compound?

Cr2+ (aq)

A

Blue

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Q

What is the colour of this ion / compound?

Cr3+ (aq)

A

Green but violet when pure

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Q

What is the colour of this ion / compound?

Cr(OH)3 (s)

A

Grey-green

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Q

What is the colour of this ion / compound?

Cr2O3 (s)

A

Grey-green

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Q

What is the colour of this ion / compound?

[Cr(OH)6]3- (aq)

A

Dark green

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Q

What is the colour of this ion / compound?

CrO42- (aq)

A

Yellow (Chromate (VI))

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Q

What is the colour of this ion / compound?

Cr2O72- (aq)

A

Orange (Dichromate (VI))

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Q

What is the colour of this ion / compound?

Mn2+ (aq)

A

Pale pink / Colourless (titration)

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Q

What is the colour of this ion / compound?

MnO2 (s)

A

Black / Brown (titration) Manganese (IV) oxide

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Q

What is the colour of this ion / compound?

MnO42- (aq)

A

Green Manganate (VI)

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Q

What is the colour of this ion / compound?

MnO4- (aq)

A

Purple / Violet Manganate (VII)

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Q

What is the colour of this ion / compound?

Fe2+ (aq)

A

(pale) Green

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Q

What is the colour of this ion / compound?

Fe3+ (aq)

A

Yellow but violet when pure

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Q

What is the colour of this ion / compound?

Fe(OH)2 (s)

A

(dirty) Green

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Q

What is the colour of this ion / compound?

Fe(OH)3 (s)

A

Red-brown

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Q

What is the colour of this ion / compound?

[Fe(H2O)5(SCN)]2+ (aq)

A

Blood red

Q

What is the colour of this ion / compound?

[Fe(CN)6]4- (aq)

A

Yellow

Q

What is the colour of this ion / compound?

[Fe(CN)6]3- (aq)

A

Orange-brown

Q

What is the colour of this ion / compound?

Cu2O (s)

A

Brick red

Q

What is the colour of this ion / compound?

CuI (s)

A

white

Q

What is the colour of this ion / compound?

Cu2+ (aq)

A

(light) blue

Q

What is the colour of this ion / compound?

Cu(OH)2 (s)

A

(pale) blue

Q

What is the colour of this ion / compound?

[CuCl4]2- (aq)

A

Yellow

Q

What is the colour of this ion / compound?

[Cu(H2O)2(NH3)4]2+ (aq)

A

Deep blue