1
Q
Cu^(2+)
A
blue solution
2
Q
[Cu(NH3)4(H20)2] ^(2+)
A
dark blue solution
3
Q
CuCl4^(2-)
A
yellow
4
Q
CoCl4^(2-)
A
blue
5
Q
MnO4^(-)
A
purple
6
Q
Mn^(2+)
A
pale pink
7
Q
Fe^(2+)
A
pale green
8
Q
Fe^(3+)
A
pale yellow
9
Q
Cr2O7^(2-)
A
yellow
10
Q
Cr^(3+) in aqueous
A
violet
11
Q
[Cr(H2O)5(SO4)]^(+)
A
green
12
Q
Cr^(2+)
A
pale blue
13
Q
[Cr(NH3)6]^(3+)
A
purple
14
Q
[Cr(OH)6]^(3-)
A
dark green
15
Q
A
chemistry
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