What is the oxidation number of Ti in TiO2? Chemistry Electrochemistry Oxidation Numbers 1 Answer anor277 Nov 24, 2015 #Ti(IV)# Explanation: The oxidation number of oxygen is generally #-II#, and it is here. The oxidation numbers must sum to zero for a neutral compound; thus; #Ti_(ON) - 2 -2=0; Ti_(ON)=??# Answer link Related questions How do oxidation numbers relate to electron configuration? How do oxidation numbers relate to valence electrons? How do oxidation numbers vary with the periodic table? How do you calculate the oxidation number of an element in a compound? What is the oxidation number for sulfur? What is the oxidation number for carbon? What is the oxidation number for copper? What is the oxidation number for nitrogen? What is the oxidation number for oxygen? Why is the oxidation state of noble gas zero? See all questions in Oxidation Numbers Impact of this question 10502 views around the world You can reuse this answer Creative Commons License