The number of water molecule(s) directly bonded to the metal centre in $\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2…
The number of water molecule(s) directly bonded to the metal centre in $\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}$ is
Solution
$\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right] \mathrm{SO}_4 \cdot \mathrm{H}_2 \mathrm{O}$. Coordination number of $\mathrm{Cu}$ is 4 .