Oxidation numbers and colours Flashcards
1
Q
Vanadium +5
A
Yellow
2
Q
Vanadium +4
A
Blue
3
Q
Vanadium +3
A
Green
4
Q
Vanadium +2
A
Violet
5
Q
Chromium +6
A
Orange
6
Q
Chromium +3
A
Green
7
Q
Chromium +2
A
Blue
8
Q
CrO4^2- + H+
A
Yellow to orange
9
Q
Cr2O7^2- + OH-
A
Orange to yellow
10
Q
Green
A
Vanadium +3 and Chromium +3
11
Q
Violet
A
Vanadium +2
12
Q
Blue
A
Vanadium +4 and Chromium +2
13
Q
Yellow
A
Vanadium +5
14
Q
Orange
A
Chromium +6
15
Q
Orange to yellow
A
Cr2O7^2- + OH-
