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Coordination Compounds

Long Answer Type

191.

What is meant by stability of coordinate compound in solution? State the factors which govern stability of complexes.

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Short Answer Type

192. What is meant by the chelate effect? Give an example.

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193. Discuss briefly the role of coordination compounds in biological systems.

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194. Discuss briefly the role of coordination compounds in analytical chemistry.

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195. Discuss briefly the role of coordination compounds in medicinal chemistry.

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196. Discuss briefly the role of coordination compounds in extraction/metallurgy of metals.

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197.
What is macrocyclic effect?

Macrocyclic effect is similar to chelate effect. In macrocyclic effect multidentate ligand form cyclic ring with central metal or ion, since it is multidentate ligand it enhanced the stability of complex. Therefore called macrocyclic effect.

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198.

How does the metal carbonyls gain stability although CO is a weak donor?

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199. [CoF₆]^3– is paramagnetic whereas [Co(C₂O₄)₃]^3– is diamagnetic. Why?

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200. [NiCl₄]^2– is paramagnetic in nature, explain.

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