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Addition Compounds or Molecular Compounds - (Concept)
Addition Compounds or Molecular Compounds
These are those compounds which are formed by the combination or simple addition of two or more simple salts. These compounds are of two types, i.e, Double salts and Coordination compounds.
Difference between a double salt and a coordination compound
Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio. However, they differ in the fact that double salts such as carnallite, KCl.MgCl2.6H2O, Mohr’s salt, FeSO4.(NH4)2SO4.6H2O, potash alum, KAl(SO4)2.12H2O, etc. dissociate into simple ions completely when dissolved in water. However, complex ions such as [Fe(CN)6]4– of K4[Fe(CN)6] do not dissociate into Fe2+ and CN– ions.
| Exam | Chapter |
| JEE MAIN | Co-ordination Compounds |
The ratio of number of water molecules in Mohr's salt and Potash atum is _____ .(Integer answer)
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Total no. ions in solution exhibited by the complex having a higher molar conductivity?
1. [Co(NH3)6]Cl3
2. [Co(NH3)3Cl3]
3. [Co(NH3)4Cl2]Cl
4. K[Co(NH3)4Cl2]Cl
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Coordination compounds have great importance in biological systems. In this context, which of the following statements is incorrect?
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An aqueous solution of potash alum gives-
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Potassium ferrocyanide is a-
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Which one of the following will give a white precipitate with in aqueous medium?
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reacts with excess of KCN solution and forms:
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Which of the following are the example of double salt?
Choose the correct answer
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A reagent which gives brilliant red precipitate with Nickel ions in basic medium is
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Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio.
