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Arrange the following compounds in order...

Arrange the following compounds in order of increasing molar conductivity .
`(i) K[Co(NH_(3))_(2)(NO_(2))_(4)]" " (ii) [Cr(NH_(3))_(3)(NO_(2))_(3)]`
`(iii) [Cr(NH_(3))_(5)(NO_(2))]_(3)[Co(NO_(2))_(6)]_(2)" " (iv) [Cr(NH_(3))_(6)]Cl_(3)`

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To arrange the given coordination compounds in order of increasing molar conductivity, we need to analyze the dissociation of each compound in solution and determine the number of ions produced. The more ions produced, the higher the molar conductivity. ### Step-by-Step Solution: 1. **Identify the Compounds:** - (i) K[Co(NH₃)₂(NO₂)₄] - (ii) [Cr(NH₃)₃(NO₂)₃] - (iii) [Cr(NH₃)₅(NO₂)]₃[Co(NO₂)₆]₂ - (iv) [Cr(NH₃)₆]Cl₃ 2. **Dissociation Analysis:** - **(i) K[Co(NH₃)₂(NO₂)₄]:** - Dissociates into K⁺ and [Co(NH₃)₂(NO₂)₄]²⁻. - Total ions = 2 (1 K⁺ + 1 complex ion). - **(ii) [Cr(NH₃)₃(NO₂)₃]:** - This compound does not dissociate into ions in solution. - Total ions = 0. - **(iii) [Cr(NH₃)₅(NO₂)]₃[Co(NO₂)₆]₂:** - Dissociates into 3 [Cr(NH₃)₅(NO₂)]²⁺ and 2 [Co(NO₂)₆]³⁻. - Total ions = 3 + 2 = 5. - **(iv) [Cr(NH₃)₆]Cl₃:** - Dissociates into [Cr(NH₃)₆]³⁺ and 3 Cl⁻. - Total ions = 1 + 3 = 4. 3. **Summary of Total Ions:** - (i) K[Co(NH₃)₂(NO₂)₄] → 2 ions - (ii) [Cr(NH₃)₃(NO₂)₃] → 0 ions - (iii) [Cr(NH₃)₅(NO₂)]₃[Co(NO₂)₆]₂ → 5 ions - (iv) [Cr(NH₃)₆]Cl₃ → 4 ions 4. **Arranging the Compounds:** - Based on the number of ions produced: - (ii) [Cr(NH₃)₃(NO₂)₃] (0 ions) < (i) K[Co(NH₃)₂(NO₂)₄] (2 ions) < (iv) [Cr(NH₃)₆]Cl₃ (4 ions) < (iii) [Cr(NH₃)₅(NO₂)]₃[Co(NO₂)₆]₂ (5 ions) 5. **Final Order:** - Increasing order of molar conductivity: - [Cr(NH₃)₃(NO₂)₃] < K[Co(NH₃)₂(NO₂)₄] < [Cr(NH₃)₆]Cl₃ < [Cr(NH₃)₅(NO₂)]₃[Co(NO₂)₆]₂
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Arrange the following compounds in order of increasing molar conductivity (a) K[Co(NH_(3))_(2)(NO_(2)_(4)] (b) [Cr(NH_(3))_(3)(NO_(2))_(3)] (c) [Cr(NH_(3))_(5)(NO_(2))]_(3)[Co(NO_(2))_(6)]_(2) (d) Mg[Cr(NH_(3))(NO_(2))_(5)]

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Complex compounds are molecular compounds which retain their identities even when dissolved in water. They do not give all the simple ions in solution but instead furnish complex ions. The complex compounds are often called coordination compounds because certain groups called ligands are attached to the central metal ion by coordinate or dative bonds. coordination compounds exhibit isomerism, both structural and stereoisomerism. the structure, magnetic property, colour and electrical properties of complexes are explained by various theories: Q. Arrange the following compounds in order of their molar conductance: (i) K[Co(NO_(2))_(4)(NH_(3))_(2)] (ii) [Cr(ONO)_(3)(NH_(3))_(2)] (iii) [Cr(NO_(2))(NH_(3))_(5)]_(3)[Co(NO_(2))_(6)]_(2) (iv) Mg[Cr(NO_(2))_(5)(NH_(3))]

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