JEE PYQ: S Block Elements Question 8
Question 8 - 2021 (18 Mar Shift 2)
The secondary valency and the number of hydrogen bonded water molecule(s) in $\text{CuSO}_4 \cdot 5\text{H}_2\text{O}$, respectively, are:
(a) 6 and 4 (b) 4 and 1 (c) 6 and 5 (d) 5 and 1
Show Answer
Answer: (b)
Solution
In $\text{CuSO}_4 \cdot 5\text{H}_2\text{O}$, four water molecules are coordinated to $\text{Cu}^{2+}$ and one water molecule is hydrogen bonded to $\text{SO}_4^{2-}$. Secondary valency = 4, hydrogen bonded water molecule = 1.
BETA
