Multiple Choice Questions (MCQ) on Plastic
1- Which polymerization method is suitable for Polyacrylonitrile?
(A). Anionic polymerization
(B). Coordination polymerization
(C). Cationic polymerization
(D). Free radical polymerization
2- The functionality of acetylene is
(A). 1
(B). 2
(C). 3
(D). 4
3- Reference material used in NMR is
(A). Tetramethylsilane
(B). Dimethylsilane
(C). Trimethylsilane
(D). Triichloromethylsilane
4- The polymer which is used in space suits is
(A). Polyphenyleneoxide
(B). Polycarbonate
(C). Torlon
(D). Nomex
5- The polymer that is used for water purification
(A). Polyacrylamide
(B). Polysulphone
(C). Polyethylene oxide
(D). Polyester
6- Which among the following is not a photo-conducting polymer?
(A). Poly N-vinyl carbazole
(B). Polythiophene
(C). Polyvinylpyrene
(D). Poly 2- vinyl carbazole
7- Which polymerization technique often results in low molecular weight polymer?
(A). Bulk polymerization
(B). Emulsion polymerization
(C). Suspension polymerization
(D). Solution polymerization
8- Which of the following bonds possess the highest bond energy?
(A). C-C
(B). B-O
(C). SI-O
(D). SI-N
9- Ionic polymers are used for heterogeneous catalysis because of their __________ property
(A). Ionic cross-linking
(B). Ion-exchange capability
(C). Hydrophilicity
(D). All of these
10- Natural rubber is chemically known as
(A). Cis-1,4 polyisoprene
(B). Trans-1,4 polyisoprene
(C). Cis-1,3 polyisoprene
(D). Trans-1,3 polyisoprene
ANSWERS:
1-(A), 2-(D), 3-(A), 4-(D), 5-(A), 6-(B), 7-(D), 8-(B),9-(B), 10-(A)