Oxidation States and Titanium Dioxide

The video tutorial explains how to find the oxidation numbers for titanium and oxygen in titanium dioxide (TiO2). It begins by noting that TiO2 is a neutral compound, meaning the sum of its oxidation numbers is zero. The video highlights that titanium is a transition metal with an unknown oxidation state, while oxygen typically has an oxidation state of -2. By calculating the total oxidation numbers, it is determined that titanium must have an oxidation state of +4 to balance the -4 from the two oxygen atoms, resulting in a net oxidation number of zero for the compound.

What is the overall charge of the compound titanium dioxide (TiO2)?

• Variable

• Neutral

• Negative

• Positive

Which element in TiO2 is a transition metal with an unknown oxidation state?

• Hydrogen

• Carbon

• Titanium

• Oxygen

What is the typical oxidation state of oxygen in compounds?

• +2

• 0

• -1

• -2

How many oxygen atoms are present in titanium dioxide (TiO2)?

• Three

• Two

• One

• Four

What must be the oxidation state of titanium in TiO2 to balance the compound to zero?

• +4

• +5

• +3

• +2