The number of water molecule(s) directly bonded to the metal centre in $\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}$ is

JEE Advanced · 2009 · 12 Apr 2009 · Paper 2 · Coordination Compounds

The number of water molecule(s) directly bonded to the metal centre in

CuSO_{4} \cdot 5 H_{2} O

Answer: 4

Solution

The structure of copper sulfate pentahydrate is

[Cu (H_{2} O)_{4}] SO_{4} \cdot H_{2} O

. Four water molecules are directly coordinated to the copper ion in a square planar arrangement, while the fifth water molecule is hydrogen-bonded to the sulfate ion.

JEE Advanced · 2009 · 12 Apr 2009 · Paper 2 · Integer answer

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