Transition Metal Colours Flashcards
1
Q
V^2+
A
Lavender
2
Q
V^3+
A
Green
3
Q
VO^2+
A
Blue
4
Q
VO2 ^+
A
Yellow
5
Q
VO3 -
A
Colourless
6
Q
NH4VO3
A
Colourless solid
Yellow in solution
7
Q
Cr 2+
A
Blue
8
Q
Cr^3+
A
Green
9
Q
CrO4 ^2-
A
Yellow
10
Q
Cr2O7 ^2-
A
Orange
11
Q
Fe^2+ + NaOH
A
Green precipitate
Goes brown on exposure to air as oxidised to iron (III)
Excess NaOH
insoluble
12
Q
Fe3+ plus NaOH
A
Red brown ppt
Insoluble In NaOH
13
Q
Co 2+ NaOH
A
Blue ppt
Turns pink on standing as it loses water
Insoluble In excess
14
Q
Cr3+ NaOH
A
Green ppt
Green solution in excess
15
Q
Cu 2+ NaOH
A
Blue ppt
Insoluble excess
