Carboxylic acids are dehydrated on heating strongly to form anhydride in the presence of catalyst ;
Correct answer: D. P2O5
- A. V2O5
- B. HI/P
- C. SO2
- D. P2O5
Explanation
P2O5 acts as a dehydrating agent on heating carboxylic acid in presence of P2O5 it dehydrates to form acid anhydride. reference: Punjab text board class 12 chapter carboxylic acid pg 358 and Federal text board class 12 chapter carboxylic acids and functional derivatives pg 188
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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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