General Science MCQ – 144 (Chemistry)

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1. Nylon threads are made of?
(A) Polyester polymer
(B) Polyamide polymer
(C) Polyethylene polymer
(D) Polyvinyl polymer

2. Which of the following is a branched polymer?
(A) Low density polymer
(B) Polyester
(C) High density polymer
(D) Nylon

3. On the basis of mode of formation polymers can be classified?
(A) As addition polymers only
(B) As condensation polymers only
(C) As copolymers
(D) As addition and condensation polymers

4. The process of heat softening, moulding and cooling to rigidness can be repeated for which plastics?
(A) Thermoplastics
(B) Thermosetting plastics
(C) Both A and B
(D) None of the above

5. The polymer used in making hair synthetic hair wigs is made up of?
(A) CH₂ = CHCl
(B) CH₂ = CHCOOCH₃
(C) C₆H₅CH = CH₂
(D) CH₂ = CH-CH = CH₂

6. Which of the following monomers form biodegradable polymers?
(A) 3-hydroxybutanoic acid + 3-hydroxypentanoic acis
(B) Glycine + amino + caproic acid
(C) Ethylene glycol + phthalic acid
(D) Both A and B

7. In addition polymer, monomer used is?
(A) Unsaturated compounds
(B) Saturated compounds
(C) Bifunctional saturated compounds
(D) Trifunctional saturated compounds

8. Polymer formation from monomer starts by?
(A) The condensation reaction between monomers
(B) The coordinate reaction between monomers
(C) Conversion of monomer to monomer ions by protons
(D) Hydrolysis of monomers

9. Which of the following statements is not correct for fibres?
(A) Fibres possess high tensile strength and high modulus
(B) Fibres impart crystalline nature
(C) Characteristic features of fibres are due to strong intermolecular force like hydrogen bonding
(D) All of the above

10. Which of the following does not undergo additional polymerization?
(A) Vinyl chloride
(B) Butadiene
(C) Styrene
(D) All of the above

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