Colours Flashcards by Charlotte Roe

Q

[Al(H2O)3(OH)3]

A

White precipitate

OH- or NH3 or Na2CO3

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Q

[Al(H2O)2(OH)4]-

A

Colourless solution

Excess OH-

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Q

[Cr(NH3)6]3+

A

Purple solution

Excess NH3

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Q

[Cr(H2O)6]3+

A

Violet solution

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Q

[Cr(H2O)3(OH)3]

A

Green precipitate

OH- or NH3 or Na2CO3

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Q

CrO4-

A

Yellow solution

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Q

[Cr2O7]2-

A

Orange solution

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Q

[Cr(OH)6]3-

A

Green solution

OH- excess

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Q

[Co(NH3)6]3+

A

Brown solution

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Q

[Co(H2O)6]2+

A

Pink solution

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Q

[Co(NH3)6]2+

A

Straw solution

NH3 excess

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Q

CoCO3

A

Pink precipitate

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Q

[Co(H2O)4(OH)2]

A

Blue green precipitate

OH- excess or NH3

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Q

(CoCl4)2-

A

Blue solution

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Q

[Cu(H2O)6]2+

A

Blue solution

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Q

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

A

Deep blue solution

NH3 excess

Q

CuCO3

A

Green blue precipitate

Na2CO3

Q

[CuCl4]2-

A

Lime green solution

Q

[Cu(H2O)4(OH)2]

A

Blue precipitate

Excess OH- or little NH3

Q

[Fe(H2O)6]3+

A

Yellow solution

Q

[Fe(H2O)6]2+

A

Green solution

Q

FeCO3

A

Green precipitate

Na2CO3

Q

[Fe(H2O)4(OH)2]

A

Green precipitate

Excess OH- or excess NH3

Q

[Al(H2O)6]3+

A

Colourless solution

[Fe(H2O)3(OH)3]

Brown precipitate | Excess oh- or excess nh3 or na2co3