# The number of water molecule(s) not coordinated to copper

Question:

The number of water molecule(s) not coordinated to copper ion directly in $\mathrm{CuSO}_{4} .5 \mathrm{H}_{2} \mathrm{O}$, is :

1. 4

2. 3

3. 1

4. 2

Correct Option: , 3

Solution:

One water molecule as shown in the diagram, is not coordinated to copper ion directly.