1. Polycarbonate,LCP,biopol,conducting polymer,electroluminescent polymer

2. Polycarbonate polymers are used for making goggles because
It has high durability
It has high impact resistance
It has high resistance to water
It has high optical clarity

3. Kevlar is a
Glass fiber
Carbon fiber
aramid fiber
metallic fiber

4. The chemical composition of Kevlar is
Para polyphenylene terephthalene
polyphenyl para terephthalamide
poly paraphenylene terephthalamide
poly terephthalene paraphenylene

5. If a liquid crystalline polymer exhibits liquid crystalline phase in solution ,it is known as
Thermotropic
Lyotropic
Mesotropic
sesotropic

6. If a liquid crystalline polymer exhibits liquid crystalline phase in melt,it is known as
Thermotropic
Lyotropic
Mesotropic
sesotropic

7. Kevlar isa Smectic lyotropc LCP nematic lyotropc LCP
Smectic thermotropic LCP
nematic thermotropic LCP

8. Thermal stability of kevlar is due to
Amide group
Aramide ring structure
Long chain
All of these

9. The disprsed phase in fibre reinforced plastic can be
Glass fibre
Carbon fibre
Aramid fibre
All of these

10. First reported electroluminescent polymer is
Polyamide
Poly-phenylene –vinylene polymer
Polyacetylene
Poly vinyl chloride

11. In a polymer light emmiting diode ,Indium –tin-oxide is commanly used as
Anode material
Cathode material
For both anode and cathode
For neither anode nor cathode

12. Biopol is the commercial name of
Polyhydroxybutyrate
Polyhydroxyvalarate
Polyhydroxybutyrate-hydroxyvalarate
Hydroxybutyrate-hydroxyvalarate

13. Polyacetylene is doped with----to increase conductivity
Germanium
Silicon
Iodine
benzene

14. Conductivity of polymers is observed due to
P dopingof ICP
N dopingof ICP
Metallic fibre blending of ECP
Allof these

15. On polymer backbone ,N doping creates
Positive charge
Negative charge
Neutral charge
All of these