Medium MCQ +4 / -1 PYQ · JEE Mains 2021

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

  1. A 5 and 1
  2. B 4 and 1 Correct answer
  3. C 6 and 5
  4. D 6 and 4

Solution

CuSO<sub>4</sub>.5H<sub>2</sub>O $\Rightarrow$ [Cu(H<sub>2</sub>O)<sub>4</sub>]SO<sub>4</sub>.H<sub>2</sub>O<br><br> In CuSO<sub>4</sub>.5H<sub>2</sub>O, Cu is co-ordinated with 4 water molecule and two more oxygen atom from sulphate ion and fifth water molecule is hydrogen bonded.<br><br> So secondary valency = 4<br><br> No. of hydrogen bond per molecule = 1

About this question

Subject: Chemistry · Chapter: Coordination Compounds · Topic: Ligands and Coordination Number

This question is part of PrepWiser's free JEE Main question bank. 173 more solved questions on Coordination Compounds are available — start with the harder ones if your accuracy is >70%.

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →