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Question
Which of the following is a tricarboxylic acid?
Options
Caproic acid
Valerie acid
Citric acid
Oxalic acid
MCQ
Solution
Citric acid
Explanation:
\[\begin{array}{cc}
\phantom{..........}\ce{O}\\
\phantom{..........}||\\
\phantom{.........}\ce{CH2 - C - OH}\\
\phantom{.}|\phantom{....}\ce{O}\\
\phantom{.....}||\\
\ce{HO - C - C - OH}\\
\phantom{...}|\phantom{......}\ce{O}\\
\phantom{..........}||\\
\phantom{.........}\ce{CH2 - C - OH}
\end{array}\]
`{:("CH"_3 - "CH"_2 - "CH"_2 - "CH"_2 - "COOH" - "Valerie acid"),("CH"_3 - "CH"_2 - "CH"_2 - "CH"_2 - "CH"_2 - "COOH" - "Caproic acid"):}}` (Monocarboxylic acid)
HOOC - COOH - Oxalic acid (Dicarboxylic acid)
shaalaa.com
Classification of Aldehydes, Ketones and Carboxylic Acids
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