Carboxylic acids turn?
Correct answer: B. Blue litmus red
- A. Red litmus blue
- B. Blue litmus red
- C. Neutral to litmus
- D. No effect
Explanation
Correct option is B.The carboxylic acid turns blue litmus red because the hydroxyl group present in -COOH is far more acidic than in alcohol. Note: If the color of the blue litmus paper changes to red, then a carboxyl group is present.
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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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