Which one of the following reagent is used to convert acetic acid to ethane?
Correct answer: B. HI and Red P
- A. LiAlH4
- B. HI and Red P
- C. P2O5
- D. SOCl2 and pyridine
Explanation
HI (hydroiodic acid) and red phosphorus, is used to reduce carboxylic acids to alkanes. In this case, HI acts as a reducing agent while red phosphorus acts as a catalyst.
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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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