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Transition metal colours Flashcards

1
Q

What colour is the [Fe(H20)6] 2+ ion?

A

Green solution

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2
Q

What colour is the [Cu(H20)6]2+ ion?

A

Blue solution

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3
Q

What colour is the [Fe(H2O)6]3+ ion?

A

Purple solution

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4
Q

What colour is the [Al(H2O)6]3+ ion?

A

Colourless solution

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5
Q

What is the colour of Vanadium with an oxidation state of +5?

A

Yellow

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6
Q

What is the colour of Vanadium with an oxidation state of +4?

A

Blue

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7
Q

What is the colour of Vanadium with an oxidation state of +3?

A

Green

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8
Q

What is the colour of Vanadium with an oxidation state of +2?

A

Purple

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9
Q

What ion is produced from Fe2+ reacting with NaOH?

A

Fe(H2O)4(OH)2

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10
Q

What colour is the Fe(H2O)4(OH)2 complex?

A

Green ppt

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11
Q

What ion is produced from Fe2+ reacting with xs NaOH?

A

No reaction

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12
Q

What ion is produced from NH3 reacting with Fe2+?

A

Fe(H2O)4(OH)2

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13
Q

What colour is the Fe(H2O)4(OH)2 complex?

A

Green ppt

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14
Q

What ion is produced from xs NH3 reacting with Fe2+?

A

No reaction

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15
Q

What compound is formed from Fe2+ reacting with NaCO3?

A

FeCO3

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16
Q

What colour is FeCO3

17
Q

What ion is produced from Cu2+ reacting with NaOH?

A

Cu(H2O)4(OH)2

18
Q

What colour is the Cu(H2O)4(OH)2 complex?

19
Q

What ion is produced from Fe3+ reacting with NaOH?

A

Fe(H2O)3(OH)3

20
Q

What colour is the Fe(H2O)3(OH)3 complex?

21
Q

What ion is produced from Al3+ reacting with NaOH?

A

Al(H2O)3(OH)3

22
Q

What colour is the Al(H2O)3(OH)3 complex?

23
Q

What ion is produced from Cu2+ reacting with xs NaOH?

A

No reaction

24
Q

What ion is produced from Fe3+ reacting with xs NaOH?

A

No reaction

25
What ion is produced from Al3+ reacting with xs NaOH?
[Al(OH)4]-
26
What colour is the [Al(OH)4]- ion?
Colourless solution
27
What is formed when Cu2+ reacts with NH3?
Cu(H2O)4(OH)2
28
What colour is the Cu(H2O)4(OH)2 complex?
Blue ppt
29
What is formed when Cu2+ reacts with xs NH3?
[Cu(H2O)2(NH3)4]2+
30
What colour is the [Cu(H2O)2(NH3)4]2+ complex?
Deep blue solution
31
What is formed when Fe3+ reacts with xs NH3?
No reaction
32
What is formed when Al3+ reacts with xs NH3?
No reaction
33
What is formed when Cu2+ reacts with Na2CO3?
CuCO3
34
What colour is the CuCO3 compound?
Blue-green ppt
35
What is formed when Fe3+ reacts with Na2CO3?
Fe(H2O)3(OH)3 and CO2
36
What colour is the Fe(H2O)3(OH)3 complex?
Brown ppt
37
What is formed when Al3+ reacts with Na2CO3?
Al(H2O)3(OH)3 and CO2
38
What colour is the Al(H2O)3(OH)3 complex?
White ppt

Chemistry (5 decks)

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