The two monomers used in the preparation of dextron are

• 3-hydroxy butanoic acid and 3-hydroxy pentanoic acid

• ∈ amino caproic acid and glycine

• isobutylene and isoprene

• lactic acid and glycolic acid

Which of the following statements about low-density polythene is false?

• It is a poor conductor of electricity

• Its synthesis requires dioxygen or a peroxide initiator as a catalyst.

• It is used in the manufacture of buckets, dustbins etc.

• It is used in the manufacture of buckets, dustbins etc.

Which polymer is used in the manufacture of paints and lacquers?

• Bakelite

• Glyptal

• Polypropene

• Polypropene

Which one is classified as a condensation polymer?

• Dacron

• Neoprene

• Teflon

• Teflon

The polymer containing strong intermolecular forces e.g. hydrogen bonding is

• natural rubber

• Teflon

• Nylon 6,6

• Nylon 6,6

6.

The formation of which of the following polymers involves hydrolysis reaction?

• Nylon 6

• Bakelite

• Nylon 6, 6

• Nylon 6, 6

Buna-N synthetic rubber is a copolymer of

•  and
  H₂C = CH – CH = CH₂

• H₂C = CH – CH = CH₂ and
  H₅C₆ – CH = CH₂

• H₂C = CH – CN and H₂C = CH – CH = CH₂

• H₂C = CH – CN and H₂C = CH – CH = CH₂

Bakelite is obtained from phenol by reacting with

• (CH₂OH)₂

• CH₃CHO

• CH₃COCH₃

• CH₃COCH₃

Among the following substituted silanes the one which will give rise to cross linked silicone polymer on hydrolysis is

• R₄Si

• RSiCl₃

• R₂SiCl₂ 

• R₂SiCl₂ 

Which of the following is a polyamide?

• Teflon

• Nylon – 6,6

• Terylene

• Terylene