Formation of Coloured ions Flashcards
Transition metals
1
Q
Fe2+
A
Green
2
Q
Fe(OH)2
A
Green precipitate
3
Q
Fe3+
A
Yellow
4
Q
Fe(OH)3
A
orange-brown precipitate
5
Q
Cu
A
Brown solid
6
Q
Cu+
A
colourless
7
Q
CuI
A
white precipitate
8
Q
Cu2+
A
pale blue
9
Q
[Cu(NH3)4(H2O)2]2+
A
Deep blue
10
Q
Cu(OH)2
A
pale blue precipitate
11
Q
[CuCl4]2-
A
yellow
12
Q
Cr3+
A
violet
13
Q
[Cr(NH3)6]3+
A
purple
14
Q
Cr(OH)3
A
green precipitate
15
Q
[Cr(OH)6]3-
A
green
cr3+ so shcloss green
