Verified Solution • 2025–26 Session moderate

QJEEM21Chf1a9: JEE Main 2021 Chemistry - Class 12 JEEM21Chf1a9 Solution: The secondary valency and the number of hydrogen bonded water…

The secondary valency and the number of hydrogen bonded water molecule(s) in CuSO4 . 5H2O, respectively, are :

Multiple Choice Options

  • A 5 and 1
  • B 4 and 1
  • C 6 and 5
  • D 6 and 4

Step-by-Step Verified Solution

CuSO4.5H2O ⇒\Rightarrow [Cu(H2O)4]SO4.H2O

In CuSO4.5H2O, Cu is co-ordinated with 4 water molecule and two more oxygen atom from sulphate ion and fifth water molecule is hydrogen bonded.

So secondary valency = 4

No. of hydrogen bond per molecule = 1

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