Transition element colours Flashcards
1
Q
[Cu(H2O)6] 2+
A
Pale blue
2
Q
Cu(OH)2
A
Pale blue precipitate
3
Q
[Cu(NH3)4(H2O)2]2+
A
Dark blue
4
Q
CoCl4 2-
A
Blue
5
Q
[Cr(H2O)6] 3+
A
Pale purple
Heat –> green
Cr(lll) green in solution
6
Q
Cr(OH)3
A
Dark green precipitate
7
Q
CrO4 2-
A
Yellow
8
Q
[Mn(H2O)6] 2+
A
Pale pink
9
Q
Mn(OH)2
A
Pale brown precipitate
10
Q
Fe(OH)3
A
Orange -brown precipitate
