1) Oxidation states of the metal in the minerals haematite and magnetite respectively, are A) II, III in haematite and III in magnetite B) II, III in haematite and II in magnetite C) II in haematite and II, III in magnetite D) III in haematite and II, III in magnetite Answer: Option DExplanation:Here, the-OH of the hemiacetal group is equatorial therefore, it is a β-pyranose of an aldohexose
