Colour Changes Flashcards
1
Q
Colour of [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
pale yellow
5
Q
Cu+ - reduction with Iodine
A
White preciptate in brown solution
6
Q
Cu 2+ and copper
A
Blue solution and brown solid
7
Q
CoCl4 2-
A
Dark blue
8
Q
[Cr(H2O)6]3+
A
Dark Green
9
Q
[Cr(NH3)6]3+
A
Purple
10
Q
[Cr(OH)6]3-
A
Dark Green
11
Q
Cr2O7
A
Orange
12
Q
CrO4 2-
A
Yellow
13
Q
[Mn(H2O)6] 2+
A
Pink
14
Q
Mn(OH)2 (s)
A
Pale brown precipitate
15
Q
[Fe(H2O)6] 2+
A
Pale green
16
Q
Fe (OH)2 (s)
A
Dark green precipitate
17
Q
[Fe(H2O)6] 3+
A
Yellow
18
Q
Fe (OH)3 (s)
A
Orange brown precipitate
19
Q
MnO4 -/ Fe 2+ - Mn2+/Fe3+
A
Purple to pale pink/colourless
20
Q
I-/Fe 3+ - I2/Fe2+
A
orange brown to brown
