Which of the following is not present in bagasse fiber?
Which of the following is not present in bagasse fiber?
A. Cellulose
B. Lignin
C. Pentogens
D. None of these
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Addition polymerisation takes place either by a free radical mechanism or ionic mechanism depending on the reagents used. Free radical polymerisation is catalyzed by _______________, which decompose to give free radicals?
Addition polymerisation takes place either by a free radical mechanism or ionic mechanism depending on the reagents used. Free radical polymerisation is catalyzed by _______________, which decompose to give free radicals?A. Organic peroxides
B. Sulphuric acid
C. Hydrofluoric acid
D. None of theseCation exchange resins used in water treatment is made from _____________ resin?
Cation exchange resins used in water treatment is made from _____________ resin?A. Urea formaldehyde
B. Epoxy
C. Amino
D. PhenolicSize range of polymer molecules varies from __________ meter?
Size range of polymer molecules varies from __________ meter?A. 10-2 to 10-5
B. 10-4 to 10-7
C. 10-1 to 10-2
D. 10-8 to 10-10Polystyrene is a light, transparent, thermoplastic material used for making __________________?
Polystyrene is a light, transparent, thermoplastic material used for making __________________?A. Toys and combs
B. Packaging bags
C. Non-sticking utensils
D. Electrical insulationRayon is a ____________ fibre?
Rayon is a ____________ fibre?A. Cellulosic
B. Polyamide
C. Polyester
D. NaturalChain 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 __________________?
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 __________________?A. Nylon-66
B. Teflon
C. Polyester
D. Bakelite