Multiple choice Among the following, the ore(s) of titanium is/are ilmenite hausmannite linnaeite 1 only 2 only 3 only 1 and 2 only 2 and 3 only Reveal answer Fill a bubble to check yourself A Correct answer Explanation Ilmenite (Fe.TiO3) is an oxide ore of titanium. Hausmannite (Mn3O4) is an oxide ore of manganese. Linnaeite (Co3S4) is the sulphide ore of cobalt. Hence, only ilmenite (Fe.TiO3) is the oxide ore of titanium.