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9.28 How many ions are produced from the complex \(\mathrm{Co}\left(\mathrm{NH}_3\right)_6 \mathrm{Cl}_2\) in solution?
(i) 6
(ii) 4
(iii) 3
(iv) 2
(i) 6
(ii) 4
(iii) 3
(iv) 2
Solution:
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Verified Answer
Coordination number of cobalt \(=6\)
Hence, the complex is \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_2\). It ionizes in the solution as follows:
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_2 \stackrel{\text { aqueous solution }}{\longrightarrow}\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}+2 \mathrm{Cl}^{-}\) Thus, three ions are produced. Hence, the correct option is (iii)
Hence, the complex is \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_2\). It ionizes in the solution as follows:
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_2 \stackrel{\text { aqueous solution }}{\longrightarrow}\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}+2 \mathrm{Cl}^{-}\) Thus, three ions are produced. Hence, the correct option is (iii)
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