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Polymerization

Chemistry • Organic Reactions • Knowledge-Based • 5 questions

Polymerization Knowledge-Based Download PDF

Chemistry · Organic Chemistry · Chemistry · Organic Reactions

5 Chemistry practice questions on Polymerization. Questions that assess core concepts and understanding.

Questions

  1. 1.

    In the free-radical addition polymerization of an alkene, which mechanistic step directly consumes the active chain-carrying radicals and halts further chain growth?

    • A) Termination
    • B) Initiation
    • C) Propagation
    • D) Chain transfer
  2. 2.

    During the addition polymerization of an alkene monomer, how do the carbon–carbon bond order and the hybridization of the reacting carbon atoms change as the polymer chain forms?

    • A) The bond order increases from 1 to 2, and the carbon hybridization changes from sp3sp^3 to sp2sp^2.
    • B) The bond order decreases from 2 to 1, while the carbon hybridization remains sp2sp^2.
    • C) The bond order remains 2, and the carbon hybridization changes from sp2sp^2 to spsp.
    • D) The bond order decreases from 2 to 1, and the carbon hybridization changes from sp2sp^2 to sp3sp^3.
  3. 3.

    Which structural feature is required for a single organic monomer to undergo condensation polymerization and form a linear polyester?

    • A) It must possess both a hydroxyl group and a carboxyl group.
    • B) It must contain at least one terminal carbon-carbon double bond.
    • C) It must possess two terminal amino groups along an aliphatic chain.
    • D) It must contain two adjacent carbonyl groups within an aromatic ring.
  4. 4.

    Which of the following statements correctly describes the addition polymerization of unsaturated organic monomers?

    • A) It requires bifunctional monomers containing distinct terminal groups such as hydroxyl and carboxyl groups.
    • B) It produces stoichiometric amounts of small byproduct molecules, such as water or hydrogen chloride, at each linkage.
    • C) It produces a macromolecule with an empirical formula fundamentally different from that of the starting monomer.
    • D) It involves the opening of carbon–carbon pi bonds to join monomer units together without the loss of any small byproduct molecules.
  5. 5.

    Which of the following pairs of monomers reacts via condensation polymerization to yield a polyamide?

    • A) A dicarboxylic acid and a diamine
    • B) A dicarboxylic acid and a diol
    • C) An alkene and a conjugated diene
    • D) A monocarboxylic acid and a primary amine