Colours of ions Flashcards by Lyra Elliott-Jones

Q

[Cu(H2O)6]^2+

A

pale blue

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Q

[Cu(OH)2(H2O)4]

A

pale blue ppt

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Q

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

A

dark blue

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Q

CuCl4^2-

A

yellow

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Q

CuI(s) / I2(aq)

A

white ppt
brown solution

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Q

CuSO4(aq)

A

blue solution

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Q

Cu(s)

A

brown

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Q

[Cr(H2O)6]3+ (aq)

A

pale purple

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Q

(Cr(OH)3) (s)

A

dark green ppt

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Q

[Cr(NH3)6]^3+ (aq)

A

purple solution

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Q

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

A

dark green solution

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Q

Cr2O7^2- (aq)

A

orange solution

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Q

CrO4^2-

A

yellow

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Q

[Mn(H2O)6]^2+ (aq)

A

pale pink solution

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Q

Mn(OH)2 (s)

A

pale brown ppt

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Q

[Fe(H2O)6]^2+ (aq)

A

pale green solution

Q

Fe(OH)2 (s)

A

dark green ppt

Q

[Fe(H2O)6]^3+

A

yellow solution

Q

Fe(OH)3 (s)

A

orange-brown ppt

Q

MnO4-

A

purple

Q

Mn2+

A

pale pink

Q

NH3 dropwise to Cu^2+

A

Cu(OH)2 (s)

Q

excess NH3 to Cu^2+

A

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

Q

excess HCl to Cu^2+

A

CuCl4^2-

Q

Cu2+ + I-

A

CuI + I2

Q

Cu+ + CuSO4

A

Cu2+ / Cu

Q

excess HCl to CoCl2.6H2O

A

CoCl4^2-

Q

NH3 added dropwise to [Cr(H2O)6]^3+

A

Cr(OH)3 (s)

Q

excess NH3 to Cr^2+

A

[Cr(NH3)6]^3+

Q

excess NaOH to Cr(OH)3 (s)

A

[Cr(OH)6]^3+

Q

Cr^3+ with hot alkaline H2O2

A

CrO4^2-

Q

NaOH dropwise to [Mn(H2O)6]^2+

A

Mn(OH)2 (s)

Q

NaOH dropwise to [Mn(H2O)6]^2+

A

Mn(OH)2 (s)

Q

NaOH dropwise to [Fe(H2O)6]^2+

A

Fe(OH)2 (s)

Q

NaOH dropwise to [Fe(H2O)6]^3+

A

Fe(OH)3 (s)

Q

VO2^2+

A

yellow

Q

VO2+

A

blue

Q

V3+

A

green

Q

V2+

A

violet