71. __________ practically possess no elasticity.
72. Nylon 6 as compared to nylon 6, 6 has lower
73. In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher
74. Branched chain polymers compared to linear polymers have higher
75. The rate controlling step in the manufacture of silicone rubber is the
76. Tyres are made by
77. Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
78. Viscose rayon is
79. Vulcanisation of rubber
80. Which of the following is an inorganic polymer?
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