Question

Which among the following is dicarboxylic acid?

• A. Valeric acid
• B. Caproic acid
• C. Glutaric acid
• D. Butyric acid

Hint:

Mnemonic for dicarboxylic acids: Oh My Such Good Apple Pie (Oxalic, Malonic, Succinic, Glutaric, Adipic, Pimelic).

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
A dicarboxylic acid is an organic compound that contains two carboxylic acid ($-COOH$) functional groups.
Step 2: Detailed Explanation:
1. Valeric acid: It is pentanoic acid ($CH_3(CH_2)_3COOH$), a monocarboxylic acid.
2. Caproic acid: It is hexanoic acid ($CH_3(CH_2)_4COOH$), a monocarboxylic acid.
3. Glutaric acid: It is pentanedioic acid ($HOOC(CH_2)_3COOH$). It contains two $-COOH$ groups, making it a dicarboxylic acid.
4. Butyric acid: It is butanoic acid ($CH_3(CH_2)_2COOH$), a monocarboxylic acid.
Step 4: Final Answer:
Glutaric acid is the dicarboxylic acid among the given options.