KCET · Chemistry · Coordination Compounds
How many ions per molecule are produced from the complex \([\text{Co(NH}_3\text{)}_6]\text{Cl}_2\) in solution?
- A \(6\)
- B \(4\)
- C \(3\)
- D \(2\)
Answer & Solution
Correct Answer
(C) \(3\)
Step-by-step Solution
Detailed explanation
The given complex is \([\text{Co(NH}_3\text{)}_6]\text{Cl}_2\).
When dissolved in water, the coordination sphere remains intact and does not dissociate, while the counter ions ionize completely. The dissociation reaction is given by:
\([\text{Co(NH}_3\text{)}_6]\text{Cl}_2 \rightarrow [\text{Co(NH}_3\text{)}_6]^{2+} + 2\text{Cl}^-\)
This produces \(1\) complex cation and \(2\) chloride anions.
Total number of ions produced per molecule = \(1 + 2 = 3\).
Answer: \(3\)
When dissolved in water, the coordination sphere remains intact and does not dissociate, while the counter ions ionize completely. The dissociation reaction is given by:
\([\text{Co(NH}_3\text{)}_6]\text{Cl}_2 \rightarrow [\text{Co(NH}_3\text{)}_6]^{2+} + 2\text{Cl}^-\)
This produces \(1\) complex cation and \(2\) chloride anions.
Total number of ions produced per molecule = \(1 + 2 = 3\).
Answer: \(3\)
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