Summary table of Transition Metal Complex Ion colour in solution
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Course
M5 - Physical chemistry and transition elements
Institution
OCR
Book
A-Level Chemistry for OCR A
Summary table of Transition Metal Complex Ion colour in aqueous solution (ammonia and sodium hydroxide, dropwise and excess) - includes all required compounds as per OCR specification 2023
[Mn(OH)2(H2O)4] - Pale Brown precipi-
2+ 2+
Mn [Mn(H2O)6] - Pale Pink tate INSOLUBLE INSOLUBLE
[Cr(OH)6]3-
[Mn(H2O)6]3+ - Violet (heat/ - Dark
Impurities can make appear Green so- [Cr(NH3)6]3+ - Purple solution, full
Cr3+ green) [Cr(OH)3(H2O)3] - Green-Grey precipitate lution ligand substituion
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