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30 Cards in this Set
- Front
- Back
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Cr (II) - Aqua Ions
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[Cr(H₂O)₆]²⁺
Blue |
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Cr (III) - Aqua Ions
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[Cr(H₂O)₆]³⁺
Green |
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Cr (III) - Add. NaOH
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[Cr(OH)₃(H₂O)₃]
Green ppt Soluble in XS [Cr(OH)₆]³⁻ Green solution |
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Cr (III) - Add. NH₃
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[Cr(OH)₃(H₂O)₃]
Green ppt Soluble in XS [Cr(NH₃)₆]³⁻ Mauve solution |
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Cr (III) - Add. Na₂CO₃
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[Cr(OH)₃(H₂O)₃]
Green ppt Effervescence |
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Cr (VI) - Aqua Ions
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CrO₄²⁻
Yellow |
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Fe (II) - Aqua Ions
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[Fe(H₂O)₆]²⁺
Pale Green |
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Fe (II) - Add. NaOH
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[Fe(OH)₂(H₂O)₄]
Green ppt Insoluble in XS |
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Fe (II) - Add. NH₃
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[Fe(OH)₂(H₂O)₄]
Green ppt Insoluble in XS |
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Fe (II) - Add. Na₂CO₃
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FeCO₃
White/Green ppt No effervescence |
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Fe (III) - Aqua Ions
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[Fe(H₂O)₆]³⁺
Yellow/Brown |
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Fe (III) - Add. NaOH
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[Fe(OH)₃(H₂O)₃]
Brown ppt Insoluble in XS |
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Fe (III) - Add. NH₃
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[Fe(OH)₃(H₂O)₃]
Brown ppt Insoluble in XS |
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Fe (III) - Add. Na₂CO₃
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[Fe(OH)₃(H₂O)₃]
Brown ppt Effervescence |
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Co (II) - Aqua Ions
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[Co(H₂O)₆]²⁺
Pink |
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Co (II) - Add. NaOH
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[Co(OH)₂(H₂O)₄]
Blue ppt (Pink on standing) |
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Co (II) - Add. NH₃
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[Co(OH)₂(H₂O)₄]
Blue ppt (Pink on standing) Soluble in XS [Co(NH₃)₆]²⁺ Straw coloured |
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Co (II) - Add. Na₂CO₃
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CoCO₃
Pink ppt No effervescence |
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Co (II) - Add. Conc HCl
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[CoCl₄]²⁻
Blue solution |
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Co (III) - Add. NaOH
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[Co(OH)₃(H₂O)₃]
Brown ppt |
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Co (III) - Add. NH₃
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[Co(NH₃)₆]³⁺
Yellow/Brown solution |
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Cu (II) - Aqua Ions
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[Cu(H₂O)₆]²⁺
Blue |
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Cu (II) - Add. NaOH
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[Cu(OH)₃(H₂O)₃]
Blue ppt Insoluble in XS |
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Cu (II) - Add. NH₃
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[Cu(OH)₂(H₂O)₄]
Blue ppt Soluble in XS [Cu(NH₃)₄(H₂O)₂]²⁺ Deep blue solution |
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Cu (II) - Add. Na₂CO₃
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CuCO₃
Green/Blue ppt No effervescence |
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Cu (II) - Add. Conc HCl
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[CuCl₄]²⁻
Yellow/Green solution |
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Al (III) - Aqua Ions
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[Al(H₂O)₆]³⁺
Colourless |
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Al (III) - Add. NaOH
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[Al(OH)₃(H₂O)₃]
White ppt Soluble in XS [Al(H₂O)₄(H₂O)₂]- or [Al(OH)₆]³⁻ Both colourless solutions |
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Al (III) - Add. NH₃
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[Al(OH)₃(H₂O)₃]
White ppt |
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Al (III) - Add. Na₂CO₃
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[Al(OH)₃(H₂O)₃]
White ppt Effervescence |
