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15 Cards in this Set
- Front
- Back
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Vanadium colours: +2 |
Violet (2 syllables) V2+ |
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V +3 |
V3+ GR33N |
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V +4 |
VO charge 2+ Blue (4 letters) |
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V +5 |
V(O)2 charge+ yellow Or V(O)3 charge - colourless |
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Cr +2 |
Blue |
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Cr +3 |
GR33N |
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Cr +6 |
Cr2O7(2-): orange CrO4(2-): yellow |
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Vanadium reduction (5→2) |
Zinc |
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Colour with water: cr3+ Effect of adding xs OH Effect of adding xs NH3 |
Green Green solution Purple solution |
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Colour with water: Fe2+ Effect of adding xs OH Effect of adding xs NH3 |
Green N N |
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Colour with water: Fe3+ Effect of adding xs OH Effect of adding xs NH3 |
Red brown N N |
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Colour with water: Co2+ Effect of adding xs OH Effect of adding xs NH3 CoCl4 |
Blue→Pink None Brown solution CoCl4 blue |
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Colour with water: Cu2+ Effect of adding xs OH Effect of adding xs NH3 Effect of adding HCl |
Blue N Blue sol CuCl4: Yellow |
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Fe2+ in I- + S2O8- |
Fe2+ → Fe3+ due to S2O8-, which forms 2SO4(2-) Fe3+ + 2I- → Fe2+ +I2 |
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MnO4- + C2O4(2-) |
Produced Mn2+ which is autocatalyst |
