Question:
Hexanedioic acid is used in the synthesis of which of the following?
Hexanedioic acid is used in the synthesis of which of the following?
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Adipic acid is a key monomer for Nylon-6,6 formation via condensation polymerization with diamines.
Updated On: Jun 20, 2026
- Food preservative
- Vinegar
- Polymer
- Soap
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The Correct Option is C
Solution and Explanation
Step 1: Identify the compound.
Hexanedioic acid is also known as adipic acid. It is a dicarboxylic acid with the structure HOOC–(CH\(_2\))\(_4\)–COOH. It contains two carboxyl functional groups which makes it highly reactive in condensation reactions.
Step 2: Understand its chemical behavior.
Due to the presence of two –COOH groups at both ends, adipic acid can react with diamines or diols to form long-chain repeating units. This makes it an important monomer in polymer formation reactions.
Step 3: Identify key industrial application.
Adipic acid is widely used in the production of Nylon-6,6. It reacts with hexamethylenediamine through condensation polymerization to form a strong polyamide polymer.
Step 4: Formation of polymer.
In the polymerization process: \[ \text{Adipic acid} + \text{Hexamethylenediamine} \rightarrow \text{Nylon-6,6} + H_2O \] This produces a long-chain polymer with amide linkages (–CONH–).
Step 5: Evaluate other options.
- Food preservative: not a primary use of adipic acid - Vinegar: mainly acetic acid, not hexanedioic acid - Soap: formed from fatty acids and alkalis, not dicarboxylic acids like adipic acid
Step 6: Final conclusion.
Since adipic acid is mainly used in condensation polymer synthesis, the correct answer is polymer formation.
Final Answer: \[ \boxed{\text{Polymer}} \]
Hexanedioic acid is also known as adipic acid. It is a dicarboxylic acid with the structure HOOC–(CH\(_2\))\(_4\)–COOH. It contains two carboxyl functional groups which makes it highly reactive in condensation reactions.
Step 2: Understand its chemical behavior.
Due to the presence of two –COOH groups at both ends, adipic acid can react with diamines or diols to form long-chain repeating units. This makes it an important monomer in polymer formation reactions.
Step 3: Identify key industrial application.
Adipic acid is widely used in the production of Nylon-6,6. It reacts with hexamethylenediamine through condensation polymerization to form a strong polyamide polymer.
Step 4: Formation of polymer.
In the polymerization process: \[ \text{Adipic acid} + \text{Hexamethylenediamine} \rightarrow \text{Nylon-6,6} + H_2O \] This produces a long-chain polymer with amide linkages (–CONH–).
Step 5: Evaluate other options.
- Food preservative: not a primary use of adipic acid - Vinegar: mainly acetic acid, not hexanedioic acid - Soap: formed from fatty acids and alkalis, not dicarboxylic acids like adipic acid
Step 6: Final conclusion.
Since adipic acid is mainly used in condensation polymer synthesis, the correct answer is polymer formation.
Final Answer: \[ \boxed{\text{Polymer}} \]
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