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Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

ChemistryCarboxylic acid and their DerivativesMiscellaneous/MixedMedium2 minQB

ChemistryMediumsingle choice

For the following acids

pK_a value will be in the order

Options:

Answer:

Solution:

The acidic strength of a carboxylic acid is increased by the -I effect and decreased by the +I effect of the substituents. Hence, the acidic strength order is:

$(H C)_{3} N^{+} - C H_{2} COO H > C H_{3} COO H > (C H_{3})_{3} C - C H_{2} COO H$

The order of their pK_a values will be just the reverse of it, i.e., (I) > (III) > (II).

Stream:JEESubject:ChemistryTopic:Carboxylic acid and their DerivativesSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: QB

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