Question

In epsom salt, the number of molecules of water directly coordinated with $M{g}^{2+}$ ion are :

• A. 2
• B. 4
• C. 6
• D. 7

Answer 1

The correct option is C 6

Epsom salt is magnesium sulphate $(MgS{O}_4\cdot 7H_{2}O)$. In this compound, six water molecules are directly coordinated with $M{g}^{2+}$ ions. Hence, it can be represented as $\left[Mg\right(H_{2}O{)}_6\left]\right(H_{2}O\left)\right(S{O}_4)$.