Match each synthetic polymer or biomolecule listed in Column A with its corresponding chem… — JAMB UTME

Match each synthetic polymer or biomolecule listed in Column A with its corresponding chemical linkage and structural classification in Column B.

Nylon-6,6Polyamide linkage formed by condensation polymerization of hexanedioic acid and hexane-1,6-diamine
Terylene (Dacron)Polyester linkage formed by condensation polymerization of benzene-1,4-dicarboxylic acid and ethane-1,2-diol
StarchGlycosidic linkage formed by condensation polymerization of $\alpha$ -D-glucose monomers
ProteinPeptide (amide) linkage formed by condensation polymerization of $\alpha$ -amino acid monomers

Answer

Nylon-6,6 pairs with polyamide linkage formed from hexanedioic acid and hexane-1,6-diamine; Terylene pairs with polyester linkage formed from benzene-1,4-dicarboxylic acid and ethane-1,2-diol; Starch pairs with glycosidic linkage formed from

\alpha

-D-glucose monomers; Protein pairs with peptide linkage formed from

\alpha

-amino acid monomers.

Each polymer is correctly matched to its functional linkage and monomer constituents: Nylon-6,6 is a polyamide formed from hexanedioic acid and hexane-1,6-diamine; Terylene is a polyester formed from benzene-1,4-dicarboxylic acid and ethane-1,2-diol; Starch is a polysaccharide held together by glycosidic linkages between glucose units; Protein is a natural polymer made of amino acids linked by peptide bonds.

Step-by-Step Solution

Identify the monomer composition and functional groups of Nylon-6,6

Nylon-6,6 contains amide linkages formed between carboxylic acid (

-\text{COOH}

) groups of hexanedioic acid and amino (

-\text{NH}_2

) groups of hexane-1,6-diamine.

Synthetic polyamides require a di-acid and a di-amine reactant.

Identify the monomer composition and functional groups of Terylene

Terylene contains ester linkages (

-\text{COO}-

) formed between benzene-1,4-dicarboxylic acid and ethane-1,2-diol.

Polyesters are produced by reacting a dicarboxylic acid with a dihydric alcohol (diol).

Determine the structural linkages present in Starch

Starch is a polysaccharide composed of

\alpha

-D-glucose monomers linked via condensation through glycosidic bonds.

Carbohydrates form ether-like condensation links known as glycosidic linkages.

Determine the structural linkages present in Proteins

Proteins are natural polymers made of

\alpha

-amino acids joined together by peptide linkages (

-\text{CO}-\text{NH}-

The reaction between the carboxyl group of one amino acid and the amino group of another forms a peptide bond.

Key Concept

Structural linkages and monomeric constituents of synthetic condensation polymers and natural biomolecules

Estimated Time:1m 30s

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