TM Colours Flashcards by Aarya Sumesh | Brainscape

Q

VO2 + is what charge and what colour

A

+5 and yellow

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Q

V3+ is what charge and what colour

A

+3 and green

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Q

VO^+2 is what colour and what charge

A

+4 and blue

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Q

V^2+ is what charge and what colour

A

+2 and purple

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Q

Co 2+ aqueous formula and colour

A

[Co(H2O)6]+2

Pink sol

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Q

Co +2 and OH- dropwise formula and colour

A

[Co(OH)2(H2O)4]

Pink ppt turns blue on standing

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Q

Co 2+ and OH - excess formula and colour

A

[Co(OH)6]-4

Pink ppt turns blue on standing

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Q

CO 2+ and NH3 dropwise formula and colour

A

[Co(OH)2(H2O)4]

Pink ppt turns blue on standing

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Q

Co 2+ and Cl- formula and colour

A

[CoCl4)-2

Blue sol

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Q

Co +2 and NH3 excess formula and colour

A

[Co(NH3)6]-4

Brown sol

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Q

Co +2 and H2O2 formula and colour

A

[Co(OH)6]-4

Blue sol

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Q

Cu 2+ aqueous formula and colour

A

[Cu(H2O)6] +2

Pale blue sol

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Q

Cu +2 and OH- dropwise formula and colour

A

[Cu(OH)2(H2O)4]

Blue ppt

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Q

Cu +2 and OH- excess

A

[Cu(OH)6] - 4

Blue ppt

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Q

Cu +2 and NH3 dropwise

A

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

Blue ppt

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Q

Cu +2 and NH3 excess

A

[Cu(NH3)6] -4

Dark blue sol

Q

Cu +2 and Cl-

A

[CuCl4]-2

Yellow sol

Q

Cu +2 and H2O2

A

[Cu(OH)6] -4

Yellow solution

Q

Fe +2 aqueous

A

[Fe(H2O)6]-4

Pale green solution

Q

Fe +2 and OH- dropwise

A

[Fe(OH)2(H2O)4]

Green ppt

Q

Fe +2 and OH - excess

A

[Fe(OH)6]-4

Green ppt

Q

Fe +2 and NH3 dropwise

A

[Fe(OH)2(H2O)4]

Green ppt

Q

Fe 2+ and NH3 excess

A

[Fe(NH3)]-4

Green ppt

Q

Fe +2 and H2O2

A

[Fe(OH)6] -4

Green ppt

Q

Cr +3 aqueous

A

[Cr(H2O)]+3

Green/Violet sol

Q

Cr +3 and OH- dropwise

A

[Cr(OH)3(H2O)3]

Green sol

Q

Cr +3 and OH- excess

A

[Cr(OH)6]-3

Dark green solution

Q

Cr +3 and NH3 dropwise

A

[Cr(OH)3(H2O)3]

Grey - Green ppt

Q

Cr +3 and NH3 excess

A

[Cr(NH3)6]-3

Violet sol

Q

Cr +3 and H2O2

A

CrO4 -2

Yellow

Q

If product from reaction of Cr +3 and H2O2 is reacted with H+, what will happen

A

Cr2O7 -2 formed

Yellow to orange

Q

Fe +3 aqueous

A

[Fe(H2O)6]+3

Pale Yellow sol

Q

Fe +3 and OH - dropwise

A

[Fe(OH)3(H2O)3]

Brown ppt

Q

Fe +3 and OH - excess

A

[Fe(OH)6]-3

Brown ppt

Q

Fe +3 and NH3 dropwise

A

[Fe(OH)3(H2O)3]

Brown ppt

Q

Fe +3 and NH3 excess

A

[Fe(NH3)6] -3

Brown ppt

Q

Fe +3 and H2O2

A

[Fe(OH)6]-3

Brown ppt