Oxidation States in IO2- Ion

The video tutorial explains how to determine the oxidation state of elements in the ion IO2-. It begins by discussing the concept of oxidation states and the importance of balancing them to match the ion's charge. The tutorial sets up an equation to solve for the unknown oxidation state of iodine, using the known oxidation state of oxygen. The solution reveals that iodine has an oxidation state of +3. The tutorial concludes by verifying the solution and summarizing the process.

What does the negative charge on the IO2- ion indicate?

• It is a positively charged ion.

• It has an extra electron.

• It is a neutral molecule.

• It has lost an electron.

What is the typical oxidation state of oxygen in compounds?

• -2

• 0

• -1

• +2

In the IO2- ion, what variable is used to represent the unknown oxidation state of iodine?

• x

• z

• y

• a

How many oxygen atoms are present in the IO2- ion?

• One

• Two

• Three

• Four

What is the oxidation state of iodine in the IO2- ion after solving the equation?

• +1

• +2

• +3

• +4

What is the sum of the oxidation states in the IO2- ion?

• +1

• -1

• 0

• -2

How can you verify the oxidation state of iodine in the IO2- ion?

• By using the periodic table.

• By measuring the ion's mass.

• By comparing it to the oxidation state of oxygen.

• By checking if the sum of oxidation states equals the charge of the ion.