Cellulose is the main constituent of most ______________ fibres?
Cellulose is the main constituent of most ______________ fibres?
A. Acrylic
B. Spandex
C. Synthetic
D. Natural
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β – glucose is the monomer of__________________?
β – glucose is the monomer of__________________?A. Cellulose
B. Starch
C. Protein
D. None of theseOrlon is
Question: Orlon is
[A].a copolymer. [B].
a condensation polymer. [C].
obtained by polymerising vinyl cyanide. [D].
all (a), (b) and (c). Answer: Option C
Explanation:
No answer description available for this question.
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?A. Polyvinyl alcohol
B. Polyvinyl acetate
C. Polyvinyl butyral
D. PVCWhich of the following is not a polymer of two monomers ?
Which of the following is not a polymer of two monomers ?A. Teflon
B. Bakelite
C. SBR
D. None of theseSBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?A. 1: 3
B. 3 : 1
C. 1 : 2
D. 2 : 1Addition 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 these