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Organic Chemistry

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Carboxylic Acids

Question
15 out of 16
 

The sequence of reactions shown below were done in a lab.

image\Ch 23 pass.png


Some of the reactions were done to synthesize compounds that were used to conduct other reactions. The experiments were also used to analyze the efficiency of these reactions.


Which of the following compounds has the highest pKa value?

A FCH2CH2COOH
B F2CHCH2COOH
C FCH2CH2(CH3)CH2COOH
D FCH2COOH
Ans. C The question asks for the compound that has the highest pKa value. Highest pKa value means the weakest acid. The inductive effects become less and less pronounced as the electronegative substituents are farther away from the carboxylic group.

Carboxylic Acids Flashcard List

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