In which reaction of carboxylic acid - COOH group is reduced to a -CH3 group;
Correct answer: C. Complete reduction to alkanes
- A. Formation of acid anhydride
- B. Formation of amide
- C. Complete reduction to alkanes
- D. Partial reduction to alcohols
Explanation
This option is correct. In reduction of carboxylic acids into alkane COOH group is reduced into CH3 group. This reaction proceeds in the presence HI/P (red phosphorus) CH3COOH + 6HI -----> CH3-CH3 + 2H2O + 3I2
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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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