transition element colours Flashcards
(20 cards)
1
Q
Cu2+
[Cu(H2O)6]2+
A
blue
2
Q
Cu(OH)2
A
blue
3
Q
Fe2+
[Fe(H2O)6]2+
A
pale green
4
Q
Fe(OH)2
A
green
5
Q
Fe3+
[Fe(H2O)6]3+
A
pale yellow
6
Q
Fe(OH)3
A
orange-brown
7
Q
Mn2+
[Mn(H2O)6]2+
A
pale pink
8
Q
Mn(OH)2
A
light brown
9
Q
Cr3+
[Cr(H2O)6]3+
A
violet
10
Q
Cr(OH)3
A
grey-green
11
Q
[Cr(OH)6]3-
(in excess NaOH)
A
dark green
12
Q
[Cu(NH3)4(H2O)2]2+
(in excess NH3)
A
deep blue
13
Q
[Cr(NH3)6]3+
(in excess NH3)
A
purple
14
Q
MnO4-
A
purple
15
Q
Cr2O7-
A
orange
16
Q
Cr3+
A
green
17
Q
Cr2+
A
pale blue
18
Q
CrO4-
A
yellow
19
Q
Cu+
A
white precipitate
20
Q
[CuCl4]2-
A
yellow
