Which of the Following Best Describes the Reduction of a Ketone

question 29

Multiple Choice

Which of the following best describes the reduction of a ketone to an alcohol by lithium aluminum hydride (LiAlH₄) ?

• A)A hydride nucleophile attacks the carbonyl carbon,followed by electrostatic stabilization of the alkoxide oxygen by lithium,followed by acidic protonation of the alkoxide.
• B)Lithium aluminum hydride transfers a hydrogen to both the carbonyl carbon and oxygen,resulting in an alcohol.
• C)A hydride nucleophile attacks the carbonyl carbon,followed by nucleophilic attack of AlH₃ by the generated alkoxide,followed by acidic or basic conversion of the alkoyxaluminum hydride product to an alcohol.
• D)Acidic protonation of the carbonyl,followed by neutralization of charge by the ð electrons,followed by nucleophilic attack by hydride.

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