Reduction of Aldehydes and Ketones Practice Problems

The addition of a hydride ion (H^-) and a proton (H⁺) results in the reduction of a carbonyl group. The elimination of H^- and H⁺ from an alcohol results in the formation of a carbonyl group. For the following reaction:

Identify the atom of the carbonyl where the hydride ion is added. Explain.

The addition of a hydride ion (H^-) and a proton (H⁺) results in the reduction of a carbonyl group. The elimination of H^- and H⁺ from an alcohol results in the formation of a carbonyl group.

Consider the following reaction:

True or False. The forward direction represents the reduction, and the reverse direction represents the oxidation.

Provide the ketone or aldehyde that was reduced to produce the alcohols given below:

i.

ii.

iii.

What is the structure of the product produced from the reduction reaction shown below?

True or False: The alcohol CH₃CH₂C(CH₃)(OH)CH₂CH₃ can be formed when an aldehyde or ketone undergoes a reduction reaction. Justify your answer.

Sketch the line-angle structure for the alcohol produced when H2, Ni reduce the compound below.

Draw the alcohol product of the given reaction using a condensed structural formula:

reduction of propionaldehyde by hydrogen in the presence of a platinum catalyst

Draw the alcohol produced by the following reaction using a condensed structural formula:

reduction of pentanal by hydrogen in the presence of a platinum catalyst

Provide the alcohol product of the following reaction using a condensed structural formula:

reduction of 3-methyl-4-heptanone by hydrogen in the presence of a palladium catalyst

Provide the alcohol produced by the given reaction using condensed structural formula:

reduction of butyl ethyl ketone by hydrogen in the presence of a palladium catalyst

Give the line-angle formula of the alcohol formed when the molecule below is reduced using hydrogen and a nickel catalyst.

What is the condensed structural formula of the alcohol formed in the following reduction reaction?

Which of the following is the structure of the alcohol produced when 4-bromocyclohexanone is reduced by hydrogen with a platinum catalyst?