Ozonolysis and Alkyne Reactions Quiz

What is the main difference between the ozonolysis of alkenes and alkynes?

• Alkenes form aldehydes and ketones, while alkynes form carboxylic acids.

• Alkenes form carbon dioxide, while alkynes form carboxylic acids.

• Alkenes form carboxylic acids, while alkynes form ketones.

• Alkenes form ketones, while alkynes form aldehydes.

Under reducing conditions, what is used in the second step of ozonolysis of alkenes?

• Oxygen

• Water only

• Hydrogen peroxide

• Dimethyl sulfide or zinc and water

What happens to aldehydes under oxidizing conditions during ozonolysis of alkenes?

• They decompose into carbon dioxide.

• They turn into carboxylic acids.

• They remain unchanged.

• They turn into ketones.

What is the final product when a terminal alkyne undergoes ozonolysis?

• Two ketones

• Two carboxylic acids

• One ketone and one aldehyde

• One carboxylic acid and carbon dioxide

Why is formic acid not a stable product in the ozonolysis of terminal alkynes?

• It is too volatile.

• It decomposes into ketones.

• It further oxidizes to carbon dioxide.

• It reacts with water.