GCE Chemistry colours
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50 Terms
fluoride with conc H2SO4
chloride with conc H2SO4
bromide with conc H2SO4
steamy/misty fumes (of HBr) red-brown vapour (Br2)
iodide with conc H2SO4
steamy/misty fumes (of HI), violet/purple vapour (I2), smell of rotten eggs (H2S), yellow solid (S), grey-black solid (on the sides of the test-tube) (I2)
fluoride with conc H3PO4
chloride with conc H3PO4
bromide with conc H3PO4
iodide with conc H3PO4
Ligand replacement reactions for hexaaquacopper(II) ions with ammonia solution
blue precipitate forms. Upon addition of excess ammonia solution a dark blue solution forms
Ligand replacement reactions for hexaaquacopper(II) ions with conc HCl
blue solution changes to yellow
Cr3+
green
Cr2O72-
orange
CrO42-
yellow
Mn2+
pink
Fe2+
green
Fe3+
orange
Co2+
pink
Ni2+
green
Cu2+
blue
V2+
violet
V3+
green
VO2+
blue
VO2+
yellow
[Cr(H2O)6]3+
green
[Mn(H2O)6]2+
pink
[Fe(H2O)6]2+
green
[Fe(H2O)6]3+
yellow
[Co(H2O)6]2+
pink
[Ni(H2O)6]2+
green
[Cu(H20)6]2+
blue
[Fe(SCN)(H2O)5]2+
blood red
[Cu(NH3)4(H2O)2]2+
dark blue
[Ni(NH3)6]2+
blue
[Co(NH3)6]2+
yellow
[CoCl4]2-
blue
[CuCl4]2-
yellow
[Ni(en)3]2+
pink
[Ni(edta)]2-
blue
[V(H2O)6]2+
violet
[V(H2O)6]3+
green
Note 
Flashcards (36)