Terylene is a/an_________________?
Terylene is a/an_________________?
A. Addition polymer
B. Poly amide
C. Homopolymer
D. None of these
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____________ is a copolymer?
____________ is a copolymer?A. Styrene butadiene rubber (SBR)
B. Neoprene
C. PVC
D. None of theseCellulose is the main constituent of most ______________ fibres?
Cellulose is the main constituent of most ______________ fibres?A. Acrylic
B. Spandex
C. Synthetic
D. NaturalAlkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used_______________?
Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used_______________?A. For surface coating of automobiles & air crafts
B. For fibre making
C. As plasticiser for PVC & nitrocellulose
D. For film forming materialsThe repeating units of PTFE are___________________?
The repeating units of PTFE are___________________?A. Cl2CH-CH3
B. F2 C = CF2
C. F3 C-CF3
D. FClC = CF2Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
Question: Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
[A].organic peroxides [B].
sulphuric acid [C].
hydroflouric acid [D].
none of these Answer: Option A
Explanation:
No answer description available for this question.
Which of the following is a natural polyamide fiber?
Which of the following is a natural polyamide fiber?A. Wool
B. Silk
C. Cotton
D. None of these