Colours Flashcards
1
Q
(Copper I) Cu+
A
Green
2
Q
(Copper II) Cu2+
A
Blue
3
Q
(Copper II ammonia) Cu(NH3)4 2+
A
Blue
4
Q
(Manganese II) Mn2+
A
Pink
5
Q
(Permanganate) MnO4-
A
Purple
6
Q
(Iron II) Iron2+
A
Yellow or green
7
Q
(Iron III) Iron3+
A
Red or orange
8
Q
(Iron III thiocyanate) FeSCN2+
A
Red
9
Q
(Chromium III) Cr3+
A
Green
10
Q
(Chromate ion) CrO4 2-
A
Yellow
11
Q
(Dichromate ion) Cr2O7 2-
A
Orange
12
Q
(Nickel II) Ni2+
A
Green
13
Q
(Cobalt II) Co2+
A
Pink
14
Q
(Hexaaquacobalt) Co(H2O)6 2+
A
Pink
15
Q
(Cobalt chloride) CoCl4 2-
A
Blue
16
Q
BaCO3
A
White
17
Q
CaCO3
A
White
18
Q
What ions are often colored?
A
Ions with unpaired d sublevel electrons (transition metal ions)
