When condensation product of hexamethylenediamine and adipic acid is heated to 553 K (80o) in an atmosphere of nitrogen for about 4-5 h, the product obtained is
Solid polymer of nylon - 66
Liquid polymer of nylon- 66
Gaseous polymer of nylon-66
Liquid polymer of nylon - 6
Which of the following structures represents neoprene polymer?
Which of the following is not a polymer?
RNA
Oxytocin
Cholesterol
Amylose
Which polymer is used for coating cookware to make them non-sticky?
PET
PAN
Teflon
Perlon
Which of the following does not reduce Fehling's solution?
Benzaldehyde
Formic acid
Glucose
Fructose
Which of the following is a chain growth polymer?
Starch
Nucleic acid
Polystyrene
Protein
For the formation of terylene, the number of moles of ethylene glycol required per mole of terephthalic acid is
1
3
2
4
The vulcanised rubber has
High water absorption, resistant to oxidation and good elasticity.
High water absorption, susceptible to oxidation and good elasticity.
Low water absorption, susceptible to oxidation and good elasticity.
Low water absorption, resistance to oxidation and good elasticity.
Which of the following is not a thermoplastic?
Polyvinyl chloride
Nylon- 66
Neoprene is
A monomer of rubber
Synthetic rubber
Natural rubber
Vulcanized rubber
