When an aldehyde is treated with LiAlH₄ followed by addition of H₂O, what general class of product results? A) primary alcohol B) secondary alcohol C) tertiary alcohol D) ether E) ketone

Question

Quizplus · Accepted Answer

The reaction of an aldehyde with LiAlH4 reduces the carbonyl group to a primary alcohol. The subsequent addition of H2O converts any remaining LiAlH4 to H2 and the alcohol to its corresponding hydroxyl group. The use of HSCH2CH2OH as the source of H2O generates an alcohol with an additional -CH2CH2OH group, but does not change the primary nature of the alcohol.

When an Aldehyde Is Treated with LiAlH4 Followed by Addition

When an Aldehyde Is Treated with LiAlH₄ Followed by Addition