Plastic articles are normally produced by _____________ moulding?
Plastic articles are normally produced by _____________ moulding?
A. Green sand
B. Injection
C. Shell
D. Dry sand
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Molecular weight of polymers are in the range of__________________?
Molecular weight of polymers are in the range of__________________?A. 10 to 103
B. 102-107
C. 107-109
D. 109-1011Adipic acid is an intermediate in the manufacture of _____________________?
Adipic acid is an intermediate in the manufacture of _____________________?A. Perspex
B. Nylon-66
C. Polystyrene
D. BakeliteChain 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. Bakeliteβ – glucose is the monomer of__________________?
β – glucose is the monomer of__________________?A. Cellulose
B. Starch
C. Protein
D. None of thesePolymerisation process in which two or more monomers of chemically different nature take part is called__________________?
Polymerisation process in which two or more monomers of chemically different nature take part is called__________________?A. Copolymerisation
B. Addition polymerisation
C. Chain polymerisation
D. None of these_______________________ is not a condensation polymer ?
_______________________ is not a condensation polymer ?A. Teflon
B. Nylon-66
C. Dacron
D. Polystyrene