group 16

These flashcards cover essential concepts regarding chalcogens, their properties, compounds, and reactions.

What is the oxidation state range of sulfur?

-2 to +6

How is ozone (O₃) prepared?

By electrical discharge and is endothermic.

What does the Claus process produce?

Sulfur through the high-temperature partial oxidation of H₂S to SO₂.

What is the role of catalysts in the production of sulfuric acid?

Catalysts are needed to produce H₂SO₄ from SO₃.

What is the oxidation state of sulfur in disulfuric acid (H₂S₂O₇)?

+6

What type of bonding occurs in ring and cluster compounds?

I bonding, non-bonding, and antibonding.

What distinguishes metal chalcogenides in terms of their bonding structure?

Strong in-plane bonds and weak van der Waals forces between adjacent layers.

What is the function of hydrides like hydrogen peroxide (H₂O₂)?

It acts as an oxidizing agent.

What is the oxidation state of sulfur in sulfurous acid (H₂SO₃)?

+4.

Which compounds contain sulfur at an oxidation state of +6?

Disulfuric acid (H₂S₂O₇) and sulfuric acid (H₂SO₄).