24.4.1 Oxygen

Question 1

Arrange the following binary oxides in order of increasing covalent character:

Oxides: SO2, MgO, PbO2, and F2O

Answer 1

MgO < PbO2 < SO2 < F2O

Question 2

If ozone is so beneficial in the stratosphere, why is an ozonating air purifier not the best choice for cleaning household air?

Answer 2

Ozone is an irritant to the eyes and lungs, and can accelerate aging.

Question 3

Which chemical structure does not correspond to the name given?

Answer 3

Sulfur Trioxide

Question 4

Which chemical structure does not correspond to the name given?

Answer 4

N2O

Question 5

Which of the following compounds is an amphoteric oxide?

Answer 5

Al2O3

Question 6

Which of these types of minerals does not contain oxygen?

Answer 6

Halides

Question 7

The ability to possess either positive or negative oxidation states is a common characteristic of what?

Answer 7

Nonmetals

Question 8

Carbon, nitrogen, oxygen, and fluorine are all nonmetals that can form homonuclear diatomic X2 molecules, yet only C, N and O form multiple bonds. It is also interesting that of the C, N, O, and F diatomic molecules, only O2 is paramagnetic; the rest are diamagnetic. Why are O2 molecules paramagnetic?

Answer 8

Oxygen contains unpaired electrons.

Question 9

Which of the following is not an application of oxygen compounds?

Answer 9

Oxidation of metal oxides in ores

Question 10

For the following oxides, oxidation states (or oxidation numbers) have been assigned to all atoms. Which choice shows INCORRECT oxidation states for the given oxide?

Answer 10

Cl2O7 Cl is +5 O is −2