Question
Download Solution PDFOut of the following complex compounds, which of the compound will be having the minimum conductance in solution?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Conductance of Ionic Compounds in Solution
- The conductance of a compound in solution depends on the number of ions produced upon dissociation.
- More the number of ions, higher the conductance.
- Complex compounds can dissociate into different numbers of ions depending on their structure and coordination sphere.
EXPLANATION:
- [Co(NH₃)₃Cl₃]: This is a neutral complex where all three chlorides are coordinated to cobalt. It does not dissociate into ions. Hence, conductance is minimum.
- [Co(NH₃)₄Cl₂]Cl: This is a 1:2 electrolyte. It dissociates as:
[Co(NH₃)₄Cl₂]Cl → [Co(NH₃)₄Cl2]+ + Cl-
Producing 2 ions in solution. - [Co(NH₃)₆]Cl₃: This is a 1:3 electrolyte. It dissociates as:
[Co(NH₃)₆]Cl₃ → [Co(NH₃)₆]3+ + 3Cl-
Producing 4 ions in solution. - [Co(NH₃)₅Cl]Cl: This is a 1:2 electrolyte. It dissociates as:
[Co(NH₃)₅Cl]Cl → [Co(NH₃)₅Cl]+ + Cl-
Producing 2 ions in solution.
So, [Co(NH₃)₃Cl₃] produces no ions in solution and will have the minimum conductance.
Therefore, the compound with minimum conductance in solution is [Co(NH₃)₃Cl₃].
Last updated on Jun 16, 2025
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