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प्रश्न
What is linkage isomerism? Explain with an example.
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उत्तर
Linkage isomers
Linkage isomerism arises when an ambidentate ligand is bonded to the central metal atom/ion through either of its two different donor atoms.
e.g. - [Co(NH3)5NO2]2+ Pentaammine nitrito-κN Cobalt (III) ion – N attached
[Co(NH3)5ONO2]2+ Pentaammine nitrito-κO Cobalt (III) ion – O attached
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संबंधित प्रश्न
Give one chemical test as an evidence to show that [Co (NH3)5Cl] are ionisation isomers.
Which type of isomerism is exhibited by [Pt(NH3)2Cl2]?
How many isomers are possible for an alkane having molecular formula C5H12?
What type of isomerism is present between (I) [Cr(H2O)6]Cl3 and (II) [Cr(H2O)5Cl]Cl2.H2O?
Geometrical isomerism is not shown by
What are structural isomers?
Match the pairs in column I (pairs of isomers) and column II (types of isomers)
| Column I (Pairs of isomers) |
Column II (Types of isomers) |
| (A) [Cr(H2O)5Cl]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O | (i) Ionization isomers |
| (B) [Co(en)2(NO2)2]+ and [Co(en)2(ONO2)]+ | (ii) Hydrate isomers |
| (C) [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] | (iii) Linkage isomers |
| (D) [Pt(NH3)4Cl2] Br2 and [Pt(NH3)4Br2]Cl2 | (iv) Coordination isomers |
Draw the structure of cis isomers of Pt(NH3)2Cl2.
Which one of the following complex ions has geometrical isomers?
Three organic compounds A, B and C are non cyclic functional isomers of carbonyl compounds with molecular formula C4H8O. Isomers A and C give positive Tollen’s test while compound B does not give positive Tollen’s test but gives positive iodoform test. Compounds A and B on reduction with Zn amalgam and conc. HCl give the same product.
- Write the structures of the compounds A, B and C.
- Out of the compounds A, B and C, which one will be the least reactive towards addition of HCN.
