A. Carbon atoms in the ring
B. Carbon atoms in the linear polymer chain
C. Nitrogen atoms in the ring
D. Hydrogen atoms in the ring
A. Saturated polyester
B. Polyurethane
C. Polystyrene
D. Either B. or C.
A. Employs addition polymerisation
B. Employs condensation polymerisation
C. Is a monomer
D. Is an abrasive material
A. Bakelite
B. Melamine polymer
C. Poly-methyl-methacrylate (PMMA)
D. None of these
A. Nylon
B. Polyacrylonitrile
C. Polypropylene
D. Polyester
A. Catalytic dehydrogenation of ethyl benzene
B. Dehydration of ethyl alcohol followed by hydrogenation
C. Reacting ethylene oxide with acetaldehyde
D. Fermentation of starch
A. High density
B. Low density
C. Cross-linked
D. Linear low density
A. Micro-molecules
B. Macromolecules
C. Sub-micromolecules
D. None of these
A. Are cross-linked molecules
B. Soften on application of heat
C. Are solvent soluble
D. None of these
A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these