Problem 33
Which of the following is not an example of addition polymer? (a) polystyrene (b) nylon (c) PVC (d) propylene
Problem 35
Which is used for the formation of nylon- \(6,6 ?\) (a) phthalic acid (b) sulphurous acid (c) sulphur hexafluoride (d) adipic acid
Problem 36
Which one of the following monomers gives the polymer neoprene on
polymerization?
(a) \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{Cl}\)
(b) \(\mathrm{CCl}_{2}=\mathrm{CCl}_{2}\)
(c)
Problem 37
Ziegler-Natta catalyst is (a) \(\mathrm{K}\left[\mathrm{PtCl}_{3}\left(\mathrm{C}_{2} \mathrm{H}_{4}\right)\right]\) (b) \(\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{RhCl}\) (c) \(\mathrm{Al}_{2}\left(\mathrm{C}_{2} \mathrm{H}_{3}\right)_{6}+\mathrm{TiCl}_{4}\) (d) \(\mathrm{Fe}\left(\mathrm{C}_{3} \mathrm{H}_{3}\right)_{2}\)
Problem 38
Synthetic human hair wigs are made from a copolymer of vinyl chloride and acrylonitrile and is called (a) Dynel (b) Cellulose (c) PVC (d) Polyacrylonitrile
Problem 39
Ebonite is (a) natural rubber (b) synthetic rubber (c) highly vulcanized rubber (d) polypropene
Problem 40
Nylon- 610 is a polymer of (a) caprolactam (b) hexamethylene and sebacic acid (c) hexamethylene and adipic acid (d) none of these
Problem 41
Which is not a macromolecule? (a) DNA (b) Starch (c) Palmitate (d) Insulin
Problem 42
The monomer unit of polyvinyl chloride has the formula (a) \(\mathrm{CH}_{3}-\mathrm{CH}_{2} \mathrm{Cl}\) (b) \(\mathrm{CH}_{2}=\mathrm{CH}_{2}\) (c) \(\mathrm{CHCl}=\mathrm{CHCl}\) (d) \(\mathrm{CH}_{2}=\mathrm{CHCl}\)
Problem 43
Teflon is a polymer of (a) tetrafluorethylene (b) tetraiodoethylene (c) tetrabromoethylene (d) tetrachloroethylene
