Chemistry · Aldehydes and Ketones
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When aldehyde reacts with 50 % NaOH this reaction is called _________.
- A
2.4-NDPH reaction
- B
Aldol condensation reaction
- C
Clemmenson reaction
- D
Cannizaro reaction
The Cannizzaro reaction is a disproportionation reaction of an aldehyde in the presence of a strong base, such as 50% NaOH. It involves the simultaneous oxidation of one molecule of aldehyde to the corresponding carboxylic acid and the reduction of another molecule of aldehyde to the corresponding alcohol. This reaction is named after the Italian chemist Stanislao Cannizzaro who discovered it.
This term refers to the reaction between 2,4-dinitrophenylhydrazine (2,4-DNPH) and an aldehyde or ketone to form a yellow or orange precipitate, which is used for the identification of carbonyl compounds. It is not related to the reaction of aldehyde with 50% NaOH.
Aldol condensation is a reaction between two carbonyl compounds, typically an aldehyde or ketone, that involves the formation of a new carbon-carbon bond. It occurs in the presence of a base or an acid catalyst. However, the given reaction involves an aldehyde and 50% NaOH, which is not a typical condition for aldol condensation.
The Clemmensen reaction is a reduction of a carbonyl group (aldehyde or ketone) to an alkane using zinc amalgam and hydrochloric acid. It is not related to the reaction of aldehyde with 50% NaOH.
The Cannizzaro reaction is a disproportionation reaction of an aldehyde in the presence of a strong base, such as 50% NaOH. It involves the simultaneous oxidation of one molecule of aldehyde to the corresponding carboxylic acid and the reduction of another molecule of aldehyde to the corresponding alcohol. This reaction is named after the Italian chemist Stanislao Cannizzaro who discovered it.
Tagged under Chemistry · Aldehydes and Ketones · 2022