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The Compounds [Cr(H(2)O)(6)]CI(3) , [Cr(...

The Compounds `[Cr(H_(2)O)_(6)]CI_(3)` , `[Cr(H_(2)O)_(5)CI]CI_(2)` . `H_(2)O` and `[Cr(H_(2)O)_(4)CI_(2)]` . `2H_(2)O` exhibit

A

(i) , (ii) and (iii) are hydrate isomers .

B

(i) , (ii) and (iii) are coordination isomers

C

(i) , (ii) and (iii) are ionisation isomers .

D

(i) and (ii) are stereoisomers .

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A
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coordination compounds often show various types of isomerism. The isomerism can be categorized in two main types (a) structural isomerism (b) stereo or space isomerism Structural isomerism arises due to the difference in structures of coordination-sempounds while stereo or space isomerism arises on account of the different positions and arrangements of ligands (atoms or groups) in space around the metal lonStructural isomerism can be classified in following types (i) tonization isomers- which give different ions in solution, e.g. [CoBr(NH_(3))_(5)]]SO_(4) and [Co(SO_(4))_(5)(NH_(3))_(5)]Br Hydrate isomers which differ in H_(2)O as ligand or as hydration, e.g. [Cr(H_(2)O)_(5)]CI_(2)(H_(2)O)]Cl_(2).H_(2)O[CrCl_(2)(H_(2)O)]CI.2H_(2)O (iii) Linkage isomers, which differ in atom linked to 'metal atom, e.g. [CO(NO_(2))(NH_(3))_(5)]^(2+) and CO(ONO)(NH_(3))_(6)]^(2+) Coordination isomers- which involve interchange of ligands, e.g. [Co(NH_(3))_(6)] [Cr(CN)_(6)] and [Cr(NH_(3))_(6)] [Co(CN)_(6)] (v) Coordination position isomerism-which arises in the bridged complexes due to the difference in the attachment of ligands with the metal atoms QThe compounds [Cr(H_(2)O_(6)]Cl_(3)[Cr(H_(2)O)_(5)CI]Cl_(2).H_(2)O and [Cr(H_(2)O)_(4)Cl_(2)]Cl2H_(2)O exhibit

The complex [Cr(H_(2)O)_(5)Cl]Br and [Cr(H_(2)O)_(5)Br]Cl show

The pair [Cr(H_(2)O)_(6)]CI_(3) and [Cr(H_(2)O)_(4)CI_(2)]CI.H_(2)O shows ionisation isomerism .

Name the type of isomerism shown by the pair of co-ordination compounds: [Cr(H_(2)O)_(5)Cl]Cl_(2).H_(2)O and [Cr(H_(2)O)_(4)Cl_(2)]Cl.2H_(2)O

The ionisation isomer of [Co(H_(2)O)_(4)Cl_(2)]NO_(2) (a) [Co(H_(2)O)_(4)(NO_(2))]CI_(2) (b) [Co(H_(2)O)_(4)CI_(2)]NO_(2) [Co(H_(2)O)_(4)CI(ONO)]CI (d ) [Co(H_(2)O)_(4)CI_(2)(NO_(2))]H_(2)O .

Name of the type of isomerism exhibited by the following pairs of compounds : [Cr(H_(2)O)_(4)Cl_(2)] Cl.2H_(2)O and [Cr(H_(2)O)_(5)Cl]Cl_(2)H_(2)O

The oxidation states of Cr in [Cr(H_(2)O)_(6)]Cl_(3). ,[Cr(C_(6)H_(6))_(2)] and K_(2)[Cr(CN)_(2)(O)_2(O_2)(NH_(3))] respectively are

Select the correct statement for the complexes [Cr(H_(2)O)_(6)]Cl_(3) and [Cr(H_(2)O)_(5)Cl]Cl_(2). H_(2)O

For the reaction: [Cr(H_(2)O)_(6)]^(3) + [SCN^(ɵ)] rarr [Cr(H_(2)O)_(5)NCS]^(2+)H_(2)O The rate law is r = k[Cr(H_(2)O)_(6)]^(3+)[SCN^(ɵ)] . The value of k is 2.0 xx 10^(-6) L mol^(-1) s^(-1) at 14^(@)C and 2.2 xx 10^(-5) L mol^(-1)s^(-1) at 30^(@)C . What is the value of E_(a) ?

In the reaction: [Cu(H_(2)O)_(3)(OH)]^(+) + [AI(H_(2)O)_(6)]^(3+) to [Cu(H_(2)O)_(4)]^(2+) + [AI(H_(2)O)_(5)(OH)]^(2+)

NCERT FINGERTIPS ENGLISH-COORDINATION COMPOUNDS -Assertion And Reason
  1. The Compounds [Cr(H(2)O)(6)]CI(3) , [Cr(H(2)O)(5)CI]CI(2) . H(2)O and ...

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  2. Assertion : Aqueous solution of the compound CoCl(3) * 4NH(3) when tre...

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  3. Assertion : The complex K(3) [Cr(C(2)O(4))(3)] when present in aqueous...

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  4. Assertion : N(CH(2)CH(2)NH(2))(3) and EDTA are examples of polydentate...

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  5. Assertion : Coordination number of Fe and Co in [Fe(C(2) O(4))(3)]^(3-...

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  6. Assertion : [Co(NH(3))(5)Br]SO(4) gives white precipitate with barium ...

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  7. Assertion : Tetrahedral complexes having two different types of uniden...

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  8. Assertion : In a coordination entity [PtCl(2)(en)(2)]^(2+) only the ci...

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  9. Assertion : Inner orbital complexes are low spin complexes . Reason...

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  10. Assertion : [Fe(H(2)O)(6)]^(2+) is sp^(3) d^(2) hybridised and paramag...

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  11. Assertion : In tetrahedral complexes low spin configuration are rarel...

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  12. Assertion : [Ti(H(2)O)(6)]Cl(3) on heating becomes colourless . Reas...

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  13. Assertion : According to crystal field theory , during complex formati...

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  14. [Fe(H2O)6]^(3+) is strongly paramagnetic whereas [Fe(CN)6]^(3-) is wea...

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  15. Assertion : K(2)[Ni(EDTA)] is more stable than K(3)[Al(C(2)O(4))(3)]. ...

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  16. Assertion : Geometrical isomerism is also called cis-trans isomerism ....

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