Answer:
There is no change in the oxidation number (oxidation state) of titanium in the reaction
Explanation:
TiO2
⇒ The oxidation number of O = -2
⇒ Since we have O2, this makes 2*-2 = -4
⇒ The oxation number of Ti and O2 together should be 0
⇒The oxidation number of Ti is +4
For FeTiO3, it's more complicate because Fe can have several oxidation numbers.
Since FeTiO3 has three short metal–oxygen bonds in the octahedron and three long metal -oxygen bonds.
The valences, obtained from the bond lengths by the bond valence method, is +2 anapproximately which can be rounded off to oxidation stated +4, respectively for Fe and Ti.
FeTiO3
⇒ The oxidation number of O = -2
⇒ We have O3 so this makes 3*-2 = -6
⇒Fe has an oxidation state of +2
⇒The oxidation state of Fe, Ti and O3 together should be 0
⇒Ti has an oxidation state of +4
This means Titanium doesn't change it's oxidation number.
There is no change in the oxidation number (oxidation state) of titanium in the reaction
