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Only transition elements are known to fo...

Only transition elements are known to form carbonyls. Why?

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Transition elements like Ni and Fe form carbonyls in which they show zero oxidation state. This is because of the presence of vacant d-orbitals in them.
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ICSE-COORDINATION COMPOUNDS -EXERCISE (PART - II DESCRIPTIVE QUESTIONS) (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Name the metal present in haemoglobin.

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  2. Name the central element present in chlorophyll.

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  3. What are the most important coordination numbers encountered in coordi...

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  4. Name the compound used to determine the hardness of water.

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  5. How many coordination sites are there in ethylenediamine, {:(CH2NH2)...

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  6. Write the number of types of valencies present for metals in complexes...

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  7. What are primary and secondary valencies according to modern concept?

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  8. Name a neutral ligand.

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  9. What is cis-platin?

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  10. Name the metal present in B-12.

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  11. Name two factors which influence the stability of a complex.

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  12. The magnitude of CFSE (Crystal Field Splitting Energy , Delta(0)) can ...

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  13. How does the magnitude of Deltao decide the actual configuration of d-...

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  14. Only transition elements are known to form carbonyls. Why?

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  15. Why does precipitate of AgCl dissolve in ammonia solution?

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  16. What happens when photographic plate is developed with hypo?

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  17. Name the electrolyte (complex) used in electroplating objects by silve...

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  18. What happens when excess of ammonia is added to copper sulfate solutio...

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  19. What is Nessler's reagent? How is it prepared ?

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  20. Name the type of isomerism when ambidentate ligands are attched to cen...

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