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A solution of Hg^(2+) ion on treatment ...

A solution of `Hg^(2+)` ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate .Then the coordination number of mercury in the deep blue coloured compound is:

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To determine the coordination number of mercury in the deep blue crystalline precipitate formed by the reaction of `Hg^(2+)` ions with cobalt (II) thiocyanate, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants**: The reactants in this reaction are `Hg^(2+)` ions and cobalt (II) thiocyanate, which is represented as `Co(SCN)2`. 2. **Write the Reaction**: When `Hg^(2+)` ions react with cobalt (II) thiocyanate, they form a complex. The reaction can be written as: \[ Hg^{2+} + Co(SCN)_2 \rightarrow [Hg(SCN)_4]^{2-} + Co^{2+} \] 3. **Identify the Complex Formed**: The product of the reaction is a complex ion, which is `[Hg(SCN)_4]^{2-}`. This indicates that mercury is coordinated to four thiocyanate ligands. 4. **Determine the Coordination Number**: The coordination number of a metal in a complex is defined as the number of ligand atoms that are directly bonded to the central metal atom. In this case, since there are four thiocyanate ligands coordinated to the mercury ion, the coordination number of mercury is 4. 5. **Conclusion**: Therefore, the coordination number of mercury in the deep blue crystalline compound formed is 4. ### Final Answer: The coordination number of mercury in the deep blue colored compound is **4**. ---
To determine the coordination number of mercury in the deep blue crystalline precipitate formed by the reaction of `Hg^(2+)` ions with cobalt (II) thiocyanate, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Reactants**: The reactants in this reaction are `Hg^(2+)` ions and cobalt (II) thiocyanate, which is represented as `Co(SCN)2`. 2. **Write the Reaction**: When `Hg^(2+)` ions react with cobalt (II) thiocyanate, they form a complex. The reaction can be written as: \[ ...
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