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Chem Colours > Colours > Flashcards

Colours Flashcards

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1
Q

[Fe(H2O)6]2+

A

Light green

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2
Q

[Fe(OH)2]

A

Dark Green precipitate

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3
Q

[Fe(H2O)6]3+

A

Yellow

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4
Q

[Fe(OH)3]

A

Dark brown/ Orange preciptate

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5
Q

[Cu(OH)2]

A

Pale blue preciptate

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6
Q

[Cu(H2O)6]2+

A

Pale blue

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7
Q

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

A

Dark blue

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8
Q

[Cu(Cl4)]2-

A

Yellow

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9
Q

[CoCl4]2-

A

Blue

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10
Q

CuI

A

White preciptate

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11
Q

[Cr(H2O)6]3+

A

Pale purple

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12
Q

[Cr(OH)3]

A

Dark green preciptate

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13
Q

[Cr(NH3)6]3+

A

Purple

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14
Q

[Cr(OH6)]3-

A

Dark green

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15
Q

[Cr2O7]2-

A

Orange

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16
Q

[CrO4]2-

A

Yellow

17
Q

[Mn(H2O)6]2+

A

Pale pink

18
Q

[Mn(OH)2]

A

Pale brown preciptate

19
Q

2I-+Fe3+–>Fe2++I2

A

Orange brown (Fe3+)
Brown (I2)

Starch is used as an indicator

Excess Iodine - Blue black. Else, Colourless.

20
Q

5MnO4-+8H++5Fe2+ –> 5Mn2++4H2O+5Fe3+

A

Purple (MnO4-)

Pale pink (Mn2+)

Titration is Purple / Pink to colourless when all manganate has reacted

21
Q

AgCl

Chloride Test

A

White Preciptate

Soluble in Dilute NH3

22
Q

AgBr

Chloride Test

A

Cream Preciptate

Soluble in Concentrated NH3

23
Q

AgI

Chloride Test

A

Pale Yellow

Not soluble in NH3 at all

24
Q

Cl2

A

Pale Green Gas

25
Q

Br2

A

Red Brown Liquid

Cyclohexane - Orange

26
Q

I2

A

Purple/Black solid

Cyclohexane - Violet

27
Q

Phenolphthalein

A

Colourless (Acidic) –> Pink (Basic)

Chem Colours (8 decks)

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