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Why chelated complexes are more stable t...

 Why chelated complexes are more stable than unchelated complexes

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When a chelating ligand attaches to the central metal atom, the process is accompanied by the increase in entropy, resulting in the formation of more stable complex
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Assertion Chelates are relatively more stable than non-cheltated complexes Reason Complexes containing ligands which can be easily replaced by other ligands are called labile complexes .

Out of the following pairs (of complexes), in which option, first complex is more stable than second complex :

Why is the complex [CoF_6]^(3-) less stable than the complex [Co(en)_3]^(3+) ?

In complexes more stability is shown by :

FIITJEE-TRANSITION ELEMENTS & COORDINATION COMPOUNDS-SOLVED PROBLEMS(SUBJECTIVE)
  1. Draw the structures of [Co(NH(3))(6)]^(3+) [Ni(CN)(4)]^(2-) and [Ni(CO...

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  2. The magnetic moment of [Mn(CN)(6)]^(3-) is 2.8 B.M and that of [MnBr(4...

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  3. Why chelated complexes are more stable than unchelated complexes

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  4. The hexaaqua complex[Ni(H(2)O)(6)]^(2+) is green, whereas the correspo...

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  5. Calculate magnetic moment of Fe^(3+) in [Fe(CN)(6)]^(3+) and in [Fe(H(...

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  6. Give the formula of three ions which are coloured due to charge transf...

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  7. Classify each of the following complexes as either high or low spin. E...

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  8. How do you account for the indicated molecular geometry for the follow...

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  9. An aqueous solution of CoCl(3).6NH(3) is found to be a better conducto...

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  10. Account for the following: Co(ll) is stable in aqueous solution but in...

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  11. The compounds of Zn, Cd and Hg are usually white. (ii) A dark blue pr...

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  12. A, B and C are three complexes of chromium(III) with empirical formula...

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  13. [NiC(4)]^(2-)It is paramagnetic while Ni[CO(4)] is diamagnetic though ...

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  14. Identify the complexes expected to be coloured and explain Ti(NO(3))(4...

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  15. Give evidence that [Co(NH(3))(5) CI] SO(4) Clare ionization isomers

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  16. Nicl(4)]^(2-) is paramagnetic while [Ni(CO(4))] is diamagnetic though ...

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  17. [Fe(H(2)O(6)]^(3+) is strongly paramagnetic whereas [Fe(CN)(6)]^(3-) i...

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  18. Explain (Co(NH(3))(6)]^(3+) is an inner orbital complex whereas [NI(NH...

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  19. Draw the structure of optical isomers of (i) [PICl(2)] (en)(2)]^(2+) ...

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  20. What is the coordination entity formed when excess of aqueous KCN is a...

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