Question:
Which of the following is NOT a dicarboxylic acid?
Which of the following is NOT a dicarboxylic acid?
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Dicarboxylic acids contain two carboxyl groups (-COOH) per molecule. Acrylic acid only contains one carboxyl group, making it a monocarboxylic acid.
Updated On: Jan 26, 2026
- Succinic acid
- Acrylic acid
- Malonic acid
- Phthalic acid
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The Correct Option is B
Solution and Explanation
Step 1: Understanding dicarboxylic acids.
Dicarboxylic acids contain two carboxyl groups (-COOH) per molecule. To identify which one is not a dicarboxylic acid, we examine the number of carboxyl groups in each option.
Step 2: Analyzing the options.
(A) Succinic acid: Succinic acid is a dicarboxylic acid with two carboxyl groups.
(B) Acrylic acid: Acrylic acid has only one carboxyl group, making it a monocarboxylic acid, not a dicarboxylic acid.
(C) Malonic acid: Malonic acid is a dicarboxylic acid with two carboxyl groups.
(D) Phthalic acid: Phthalic acid is a dicarboxylic acid with two carboxyl groups.
Step 3: Conclusion.
The correct answer is (B) Acrylic acid, as it is not a dicarboxylic acid.
Dicarboxylic acids contain two carboxyl groups (-COOH) per molecule. To identify which one is not a dicarboxylic acid, we examine the number of carboxyl groups in each option.
Step 2: Analyzing the options.
(A) Succinic acid: Succinic acid is a dicarboxylic acid with two carboxyl groups.
(B) Acrylic acid: Acrylic acid has only one carboxyl group, making it a monocarboxylic acid, not a dicarboxylic acid.
(C) Malonic acid: Malonic acid is a dicarboxylic acid with two carboxyl groups.
(D) Phthalic acid: Phthalic acid is a dicarboxylic acid with two carboxyl groups.
Step 3: Conclusion.
The correct answer is (B) Acrylic acid, as it is not a dicarboxylic acid.
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