76. Which of the following is not a polymer of two monomers ?
77. β - glucose is the monomer of
78. Which of the following polymers shows the highest anti-tacking properties ?
79. Buna-N is also called
80. Polypropylene is preferred to polythene, because the former is
81. Nylon-6 as compared to nylon-66 is
82. Alkyd resin is a/an
83. Most commonly used rubber vulcanisation agent is
84. Which of the following is not the commercial name of polymethylmethacrylate (PMMA) ?
85. Density of low density polythene is about __________ gm/c.c.
86. In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
87. Gutta parcha rubber is
88. The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
89. Polyhexamethylene adipimide is also known as
90. __________ is normally used for the manufacture of refrigerator components and transistor parts.
91. Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser ?
92. Poly tetra flouro ethylene (PTFE) is known as
93. Thermosetting resins/polymers as compared to thermoplastic ones are
94. The generic chemical name for the class of polymers which are commerically known as nylons is
95. Polycondensation reaction of polymerisation
96. Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
97. Which of the following is a polymer of hexamethylene diamine and adipic acid ?
98. Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
99. Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids ?