Question

Assertion: $CuSO_{4}.5H_{2}O$ has one hydrogen-bonded molecule of water.
Reason: The four molecules of water are coordinated in $CuSO_{4}. 5H_{2}O$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion .
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (A)

There is 5 crystal water present in $5 H _{2} O$. There are five water molecule present in the crystal framework of the molecule among which 4 water molecules are attached to $Cu ^{+2}$ and 1 hydrogen-bonded molecule is attached to $SO _{4}^{2}$
$\left[ Cu \left( H _{2} O \right)_{4}\right]^{2+} SO _{4}^{2-} \cdot H _{2} O .$