Iron exhibits +2 and +3 oxidation states. Which of the following statements about iron is incorrect?

Ferrous oxide is more basic in nature than ferric oxide. Ferrous compounds are relatively more ionic than the corresponding ferric compounds. Ferrous compounds are less volatile than the corresponding ferric compounds as ferrous compound is more ionic. 

But ferric compounds are more easily hydrolyzed than the corresponding ferrous compounds due to their more positive charge.

So, option D is incorrect about iron.