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6. [Zn(H2O)(OH)]2+ +excess OH-
- colourless solution
- purple solution
- Green solution
- white solution
7. [Ni(H2O)6]2+ +excess OH-
- Blue solution
- Green precipitate
- Purple solution
- Green solution
8. [Mn(H2O)6]2+ +excess OH-
- Brown precipitate
- Brown solution
- Purple solution
- Green solution
9. solutions with excess OH-
- Cr3+,Fe2+
- Cr3+,Mn2+
- Cr3+, ZN2+
- Cr3+,Ni2+
10. Fe3+(metal aqua ion, then adding OH- or NH3, excess OH-, excess NH3)
- Yellow solution-->brown ppt-->brown ppt-->brown ppt
- Green solution-->green ppt-->green ppt-->green ppt
- Yellow solution-->brown ppt-->brown ppt-->brown solution
- Green solution-->green ppt-->green ppt-->green solution
11. [Fe(H2O)6]3+
- Blue solution
- Yellow solution
- Green solution
- White solution
12. [Cr(H2O)6] + excess OH-
- Green solution
- Green precipitate
- Brown solution
- Brown precipitate
13. Mn(metal aqua ion, then adding OH- or NH3, excess OH-, excess NH3)
- Very pale pink solution-->Brown ppt-->brown solution-->brown ppt
- Very pale pink solution-->Brown ppt-->brown ppt-->brown ppt
- Very pale pink solution-->Brown ppt-->brown ppt-->purple solution
- Very pale pink solution-->Brown ppt-->brown solution-->purple solution
14. [Cr(H2O)6]3+ (violet but after hydrolysis is?)
- Yellow Solution
- Green solution
- Very pale pink solution
- Blue solution
15. [Ni(H2O)6]2+
- Very pale pink solution
- Green solution
- Yellow solution
- Blue solution
16. Ni(metal aqua ion, then adding OH- or NH3, excess OH-, excess NH3)
- Blue solution-->green ppt-->Green ppt-->Blue solution
- Green solution-->green ppt-->Green ppt-->Blue solution
- Green solution-->green ppt-->Green ppt-->green solution
- BLue solution-->blue ppt-->Blue ppt-->Blue solution
17. Cr(metal aqua ion, then adding OH- or NH3, excess OH-, excess NH3)
- Violet/Green-->green ppt-->green solution-->purple solution
- Violet/Green-->green ppt-->green ppt-->purple solution
- Violet/Green-->green ppt-->green ppt-->green solution
- Violet/Green-->green ppt-->green solution-->green solution
18. [Fe(H2O)6]3+ +excess NH3
- Green solution
- Brown solution
- Brown precipitate
- Green precipitate
19. [Mn(H2O)6]2+ +excess NH3
- green solution
- Brown precipitate
- Purple solution
- Brown solution
20. Cu(H20)4(OH)2
- White precipitate
- Green precipitate
- Blue precipitate
- Brown precipitate