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प्रश्न
What are hydrate isomers? Explain with an example.
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उत्तर
The exchange of free solvent molecules such as water, ammonia, alcohol, etc., in the crystal lattice with a ligand in the coordination entity, will give different isomers. These types of isomers are called solvate isomers. If the solvent molecule is water, then these isomers are called hydrate isomers.
For example, the complex with the chemical formula \[\ce{CrCl3.+6H2O}\] has three hydrate isomers as shown below.
| \[\ce{[Cr(H2O)6]Cl3}\] | a violet colour compound and gives three chloride ions in solution |
| \[\ce{[Cr(H2O)5Cl]Cl2.H2O}\] | a pale green colour compound and gives two chloride ions in solution |
| \[\ce{[Cr(H2O)4Cl2]Cl.2H2O}\] | dark green colour compound and gives one chloride ion in solution |
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संबंधित प्रश्न
Write the structural formula and IUPAC names of all possible isomers of the compound with molecular formula C3H8O.
Define the term Hydrated isomers.
Draw the geometrical isomers of the following complexes [Pt(NH3)(H2O)Cl2].
Which one of the following will give a pair of enantiomorphs?
Which kind of isomerism is possible for a complex [Co(NH3)4Br2]Cl?
Write the name of isomerism in the following complexes:
[Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [ CuCl4]
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.
Name the type of isomerism exhibited by the following pair of compounds:
[Co(NH3)5(ONO)]Cl2 and [Co(NH3)5(NO2)]Cl2
Name the type of isomerism exhibited by the following pair of compound:
\[\ce{[Pt(NH3)4Cl2]Br2 and [Pt(NH3)4 Br2]Cl2}\]
