Coordinate entities impart colour due to the presence of unpaired electrons in the central atom ions. These unpaired electrons show d-d transition by jumping between t2gand eg obritals as the Δ is not much and visible range light is sufficient to excite them.
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Write all the isomers of |Pt(SCN) (NH3)3] (SCN).
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Name the ligands which are regarded as strong crystal fields and causes pairing of electrons.
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What are the consequence of crystal fields?
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Why outer octahedral complexes are celled high spin complexes?
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What is the coordination number and oxidation state of aluminium in the complex ion [Al(H2O)4(OH)2] +?
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Why inner octahedral complexes are called low spin complexes?
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The colour of the coordination entity is decided on which factor?
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What is the oxidation state of gold in [Au(CN)2]–?