Neoprene is a___________________?
Neoprene is a___________________?
A. Monomer
B. Synthetic rubber
C. Polyester
D. None of these
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Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________?A. Elasticity
B. Strength
C. Plasticity
D. Weathering characteristicsWhich of the following is a copolymer ?
Which of the following is a copolymer ?A. PVC
B. Bakelite
C. Polythene
D. TeflonRain coats are made of__________________?
Rain coats are made of__________________?A. Neoprene
B. PVC
C. Polyurethane
D. SBRTemperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?A. 50°C and 3 – 4 kg/cm2
B. 50°C and 1 kgf/cm2
C. 250°C and 10 kgf/cm2
D. 250°C and 1 kgf/cm2Which of the following is not a natural polymer ?
Which of the following is not a natural polymer ?A. Nucleic acids e.g. RNA and DNA
B. Polysaccharides
C. Polyisoprene
D. PolyurethaneAcrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
Question: Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
[A].polyacrylonitrile [B].
polyamide [C].
saturated polyester [D].
alkyd resin Answer: Option A
Explanation:
No answer description available for this question.