Which of these are the correct oxide colours for those transition metals listed?
MnO - Green
Cr2O3 - violet
Fe(II)O - Dark Red
Fe2(III)O3 - Black
NiO - Blue
CuO - Black
Cu2(I)O - Black
The colours for V in its various oxidation states are as follows:
V 2+ - Violet V 3+ - Green V 4+ - Blue V 5+ (VO3- and VO2+) - Yellow
Which of these colours are correct for the listed compounds and oxidation states of Mn?
MnO - Pale Pink
MnCl2.2H2O - Brown
[Mn(H2O)6] 2+ - Purple
MnO4 2- (aq) - Pale Pink
MnO4- (aq) - Purple
What colour is CuCl2?
Green
Blue
Red
Black
Brown
[CuCl4] 2- is yellow.
NiCl2 is what colour?
Yellow
Purple
Which of these are the correct colours for their listed transition metal chlorides?
CrCl2 - Green
CrCl3 - Violet
CrCl3.6H2O - Violet
FeCl2 - Brown
FeCl3 - depends on the angle it is viewed at.
NiCl2 - Green
NiCl2.6H2O - Green
CuCl2.H2O - Green
CuCl - Green
Cu2(I)O is red.
Cr2O3 is what colour?
Violet
Cu(OH)2 is a blue solution.