Colours of some chemicals Flashcards
1
Q
colourless
A
dilute acids
alkalis
solutions of salts of group I, II & III metals
2
Q
white
A
solid salts of: Na+ K+ NH4+ Ca2+ Zn2+ Pb2+ Al3+
3
Q
black
A
CuO CuS CoO FeO FeS PbS MnO2 I2 crystals
4
Q
grey
A
metals (e.g. Zn, Fe, Al) in powder form
5
Q
dark green
A
chromium salts
6
Q
light green
A
iron(ii) salts
7
Q
blue or bluish green
A
hydrated copper(ii) salts
8
Q
yellow or brown
A
solutions of iron(iii) salts (Fe3+)
PbI2
AgI
9
Q
pale pink
A
manganese(ii) salts (Mn2+)
10
Q
purple
A
KMnO4
