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Coordination Compounds

Short Answer Type

51.

What is the coordination number and oxidation state of aluminium in the complex ion [Al(H₂O)₄(OH)₂]⁺?

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52.

Write all the isomers of |Pt(SCN) (NH₃)₃] (SCN).

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53.

Why inner octahedral complexes are called low spin complexes?

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54.

Why outer octahedral complexes are celled high spin complexes?

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55.

Name the ligands which are regarded as strong crystal fields and causes pairing of electrons.

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56.

What is the crystal fields Theory?

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57.

What are the consequence of crystal fields?

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58.
How the coordinate entities show colour?

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 t_2gand e_g obritals as the Δ is not much and visible range light is sufficient to excite them.

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