Q.1
Which of the following polymer type is not classified on the basis of its application and properties?
  • a) plastics
  • b) rubbers
  • c) synthetic
  • d) fibres
Q.2
Which of the following polymerization is also known as pearl polymerization?
  • a) emulsion polymerization
  • b) suspension polymerization
  • c) solution polymerization
  • d) bulk polymerization
Q.3
Which of the following reaction may allow the biphasic interfacial polymerization technique?
  • a) condensation polymerization
  • b) addition polymerization
  • c) both of the mentioned
  • d) none of the mentioned
Q.4
Which of the following is correct for the resultant polymer product formed, when molecules of phthalic acid react with molecules of glycerol?
  • a) cross-link polymer
  • b) linear polymer
  • c) branch polymer
  • d) none of the mentioned
Q.5
Polymer A, also available as copolymer with trifluoroethylene, is a crystalline polymer with a melting point greater thanᵒC and is used in coatings and insulation materials. What is the name of polymer A?
  • a) polytetrafluoroethylene
  • b) polyvinyl chloride
  • c) polyvinyl fluoride
  • d) polyvinylidene fluoride
Q.6
Which of the following polymerization technique allows the increase in both the rate and degree of polymerization simultaneously by increasing a certain parameter?
  • a) emulsion polymerization
  • b) suspension polymerization
  • c) solution polymerization
  • d) bulk polymerization
Q.7
What is the utilization of living polymerization?
  • a) synthesis of functional-ended polymers
  • b) monodisperse polymers
  • c) synthesis of block polymers
  • d) all of the mentioned
Q.8
Which of the following is the most widely used polymerization technique to produce polyvinyl actate?
  • a) emulsion polymerization
  • b) suspension polymerization
  • c) solution polymerization
  • d) all of the mentioned
Q.9
When should the measurement of the initiator decomposition be done?
  • a) independent of time
  • b) during polymerization
  • c) before polymerization
  • d) after polymerization
Q.10
Which of the following polymerization proceeds without the change in the composition of feed as well as copolymer?
  • a) ideal polymerization
  • b) azeotropic polymerization
  • c) alternate polymerization
  • d) block polymerization
Q.11
Which of the following polymers contains −C−C− linkages only?
  • a) condensation polymers
  • b) copolymers
  • c) addition polymers
  • d) none of the mentioned
Q.12
In which of the following polymer steric placements of the substituent are arranged in such a way to give alternate d and l configurations?
  • a) syndio-tactic polymer
  • b) isotactic polymer
  • c) atactic polymer
  • d) none of the mentioned
Q.13
Which of the following is true about polymer systems in polycondensation?
  • a) insoluble beyond a critical molecular weight
  • b) have higher viscosity than small non-polymeric molecules
  • c) both of the mentioned
  • d) none of the mentioned
Q.14
Which of the following is true about an end functional group, having a terminal reactive centre, of a polymer molecule?
  • a) cannot be determined
  • b) has greater mobility than the polymer molecule as a whole
  • c) has a lower mobility than the polymer molecule as a whole
  • d) same as polymer molecule
Q.15
Which of the following polymerization mechanism can polymerize the styrene monomer?
  • a) radical polymerization
  • b) anionic polymerization
  • c) cationic polymerization
  • d) all of the mentioned
Q.16
What does the ratio of number to weight average degree of polymerization for a bifunctional system represent?
  • c) breadth of molecular size
  • d) none of the mentioned
  • a) extent of reaction
  • b) degree of polymerization
Q.17
Which of the following monomer molecule’s presence could lead to the formation of cross linking polymer, when hydroxyl caproic acid and carboxyl acid monomers (f>are polymerized together?
  • a) ethanol
  • b) diamines
  • c) glycol
  • d) none of the mentioned
Q.18
Which of the following cannot initiate the chain reaction in polymerization of acrylo-nitrile?
  • a) coordination
  • b) anion
  • c) cation
  • d) free radical
Q.19
Which of the following reaction is not accompanied by elimination of a byproduct molecule?
  • a) condensation polymerization
  • b) addition polymerization
  • c) both of the mentioned
  • d) none of the mentioned
Q.20
Which of the following factors does initiator efficiency depend on?
  • a) polymerization condition
  • b) solvent
  • c) initiator molecules
  • d) all of the mentioned
0 h : 0 m : 1 s