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 structures represents neoprene polymer?
Which of the following is used in vulcanization rubber?
SF6
CF4
CI2F2
C2F2
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, resistance to oxidation and good elasticity.
Natural rubber is not used in making footwear for polar regions because
natural rubber becomes soft at temperature lower than 10oC
natural rubber becomes brittle at temperature lower than 10oC.
natural rubber melts at temperature lower than 10oC.
natural rubber becomes stronger at temperature lower than 10oC.
Which of the following is not a synthetic rubber?
Neoprene
SBR
Thiokol
Orlon
For the formation of terylene, the number of moles of ethylene glycol required per mole of terephthalic acid is
1
3
2
4
Which of the following does not reduce Fehling's solution?
Benzaldehyde
Formic acid
Glucose
Fructose
Which of the following is a biodegradable polymer?
Cellulose
Polythene
Polyvinyl chloride
Nylon - 6
