Question:
The number of water molecules(s) not coordinated to copper ion directly in $\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}$, is:
Correct Option:
Solution:
In $\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}$, four $\mathrm{H}_{2} \mathrm{O}$ molecules are directly coordinated to the central metal ion while one $\mathrm{H}_{2} \mathrm{O}$ molecule is hydrogen bonded.