All of the following methods are used to prepare carboxylic acids EXCEPT:
Correct answer: D. By the reduction of aldehydes
- A. By the oxidation of primary alcohol
- B. By acid hydrolysis of alkane nitrite
- C. By the reaction R-Mg-Br with CO2 followed by acid hydrolysis
- D. By the reduction of aldehydes
Explanation
The reduction of an aldehyde, typically using a reducing agent like NaBH4 or LiAIH4 yields a primary alcohol. The other three options are standard methods for synthesizing carboxylic acids.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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