NEET UG CHEMISTRY MCQ: ALDEHYDES & KETONES & CARBOXYLIC ACIDS

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Understanding +4 | -1

Which among the following carboxylic acid has the highest

p{K_a}

value?

View answer and explanation

Correct option: D

C{H_3}COOH

Option D (

CH_3COOH

) is correct because alkyl groups increase electron density and reduce acidity, thus increasing the

pK_a

value.

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\mathrm{C}{\mathrm{H}_3}\mathrm{COOH}\xrightarrow{{\mathrm{CaC}{\mathrm{O}_3}}}A\xrightarrow{{\mathrm{Heat}}}B