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10 questions from this quiz
Pale blue
Dark blue
Changes from 6 to 4
Tetrahedral
Binds to Fe²⁺ more strongly than O₂
Dissolves to form [Cr(OH)6]3−\text{[Cr(OH)}_6]^{3-}[Cr(OH)6]3−
Green
Blue precipitate of Cu(OH)2\text{Cu(OH)}_2Cu(OH)2
Cu(OH)₂ and Cr(OH)₃ only
Purple
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