61. Which of the following is not present in bagasse fibre?
62. Sodium carbonate (soda ash) is not used in the manufacture of
63. Nitric acid is not used in the manufacture of
64. The basic constituent of vegetable oils is
65. Cellulose percentage in bamboo fibre is about
66. In premitive days, __________ was being manufactured by Leblanc Process.
67. Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.
68. Nylon 6-6 is manufactured from
69. CO & H2 are the constituents of
70. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called
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