Carboxylic Acids and their Derivatives - Result Question 45
31. The total number of carboxylic acid groups in the product $P$ is
(2013 Adv.)
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Answer:
Correct Answer: 31. $(2)$
Solution:
PLAN: Reactant is cyclic anhydride and changes to dicarboxylic acid on hydrolysis.
Also there is decarboxylation on heating if there is keto group w.r.t $-COOH$ group. Ozonolysis cleaves $(\mathrm{C}=\mathrm{C})$ bond and $\mathrm{H}_2 \mathrm{O}_2$ oxidises $-CHO$ to $-COOH$ group.
Thus, number of $-COOH$ groups in $P = 2$
BETA
