Draw the product of the reaction given below.

Acetals are formed by the reaction of an alcohol with a ketone. The following reaction shows the hydrolysis of an acetal. What is the mechanism for this reaction?

Dioxepane has three isomers: 1,2-dioxepane, 1,3-dioxepane, and 1,4-dioxepane. Identify which dioxepane could act as an ordinary ether and is excellent for Grignard reactions, which could be potentially explosive when heated, and which could quickly hydrolyze in diluted acid.

Draw the structure of cyclopentanone diethyl acetal.

Explain why the ketal shown below does not undergo the mechanism of acid-catalyzed ketal hydrolysis. (Hint: Write the reaction mechanism like the reaction would occur and analyze the intermediates formed.)