Which of the following statements isincorrectregarding water of crystallisation?
It can be removed by sufficient heat.
It is in chemical combination with a crystal.
It is necessary for the maintenance of crystalline properties of the crystal.
Number of water of crystallization for a given compound depends on the temperature and pressure conditions.
In this question it is given the correct answer is "d" but if we take the example of Fe2O3 it contains xH2O it is because of the pressure conditions and temprature right ? and the water of crystalization just exists along with the element and not chemically combined
4Fe2+O2 4Fe3 +2O2
Fe2 +2H2O 22H+
+ 2 +
2FeO 2 3 2
Water of crystallisation are chemically bonded with the molecule. It include coordinate bonding and hydrogen bonding.