Transition Elemens Colours Flashcards
1
Q
Cu(H2O)6 2+
A
Pale Blue
2
Q
Cu(OH)2 (s)
A
Pale blue precipitate
3
Q
(Cu(NH3)4(H2O)2) 2+
A
Dark blue
4
Q
CuCl4 2-
A
Yellow
5
Q
Cu+
Reduction of Cu2+ with I-
A
White precipitate CuI and brown I2
6
Q
Cu2+/ Cu
Disproportionation of Cu+
A
Brown solid Cu and blue solution CuSO4
7
Q
CoCl4 2-
A
Blue
8
Q
(Cr(H20)6) 3+
A
Pale purple or green
9
Q
Cr(OH)3 (s)
A
Dark green precipitate
10
Q
Cr(NH3)6 3+
A
Purple
11
Q
Cr(OH)6 3-
A
Dark green
12
Q
Cr2O7 2-
A
Orange
13
Q
CrO4 2-
A
Yellow
14
Q
Mn(H2O)6 2+
A
Pale pink
15
Q
Mn(OH)2 (s)
A
Pale brown precipitate
16
Q
Fe(H2O)6 2+
A
Pale green
17
Q
Fe(OH)2 (s)
A
Dark green precipitate
18
Q
Fe(H2O)6 3+
A
Yellow
19
Q
Fe(OH)3
A
Orange - brown precipitate
20
Q
MnO4-/Fe2+ —> Mn2+/Fe3+
A
Purple MnO4- to pale pink Mn2+
Practically colorless in titrations due to how dilute it is
21
Q
I-/Fe3+ —> I2/Fe2+
A
Orange brown Fe3+ to brown I2
