Which of the following does not reduce Fehling's solution?
Benzaldehyde
Formic acid
Glucose
Fructose
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 type of polymer is bakelite?
Addition polymer
Homopolymer
Condensation polymer
Biopolymer
Which of the following is used in vulcanization rubber?
SF6
CF4
CI2F2
C2F2
Which of the following is not a thermoplastic?
Polystyrene
Teflon
Polyvinyl chloride
Nylon- 66
In elastomers, intermolecular forces are
very strong
weaker
strong
nil
For the formation of terylene, the number of moles of ethylene glycol required per mole of terephthalic acid is
1
3
2
4
Polyethylene is a resin obtained by polymerization of
styrene
isoprene
ethylene
butadiene
Which of the following is a biodegradable polymer?
Cellulose
Polythene
Nylon - 6
Which of the following structures represents neoprene polymer?
