Question

How many hydrogen bonded water molecule (s) are associated with $CuS{O}_4.5H_{2}O$ ?

NEET 2019

• A. 2
• B. 1
• C. 3
• D. 4

Answer 1

The correct option is B 1

In $CuS{O}_4.5H_{2}O,Cu$ is coordinated with 4 water molecules and two more oxygen atoms from Sulphate ion.
Now fifth water molecule is hydrogen-bonded and is deeply embedded in a crystal. It is not coordinated.
Only 4 water molecules are coordinated and the fifth is the only hydrogen bonded.


Hence, option A is correct