1. Functionality of monomer ,average no
Functionality of monomer ,average no. molecular weight polymer,Tg ( glass transition temperature)

2. `The examples of natural polymers are
Wood
rock
bones
all of these

3. Which of the following is not a tetra functional
sorbitol
acetylene
butadiene
glycerol

4. Which of the following can be used as a monomer benzoic acid acetic acid adipic acid ethanoic acid 1 C
benzoic acid
acetic acid
adipic acid
ethanoic acid

5. Match the following ) Natural polymer A) building blocks of polymer 2) Monomer B) linear polymer and sometime branched polymer 3) Bifunctional C)Phenol 4) Trifunctional D)Wood 1 - D, 2 -
A, 3 - B, 4 - C 1 - D,
2 -B, 3 - A, 4 - C 1 - D,
2 -A, 3 - C, 4 - B 1 - D,
2 -C, 3 - A, 4 - B 2 A

6. The ---------- is the vinylic monomer and -------- is functional group
monomer glycol & ethylene diamine
vinyl chloride & styrene
propylene & adipic acid
benzene & terphthalic acid

7. Which of the following is trifunctional monomer
Formaldehyde
Phenol
Vinyl chloride
Ethylene glycol

8. Which of the following can be used as monomer in chain polymerisation
Ethyl chloride
Hydrochloric acid
Bisphenol-A
Vinyl chloride

9. Which of the following initiator can be used in free radical polymerization
BF3
H2SO4
C2H5Na

10. The correct formula for Number Average Molecular weight of polymer is
ƩNiMi2/ƩniMi
ƩniMi/Ʃni
ƩniMi/ƩMi
none

11. Molecular weight of polymer (M), monomer (Mo) and degree of polymeristion (n) are related by
Mo = M + n
M = Mo – n
M = Mo x n
Mo = M x n

12. Choose the correct option giving features of addition polymerization ) monomer contains double bond or triple bond ) initiator is not require to start polymerization ) reaction is exothermic and fast ) polymer is exact multiple of monomer ) by-products are formed ) linear or branch polymer with live ends
2, 3, 4
1, 3, 4
3, 5, 6
3, 4, 6

13. Choose the correct option giving feature of condensation polymerisation 1Reaction is exothermic &fast 2initiator is not required to stop polymerisation reaction 3 monomer contain functional group 4 polymer is exact multiple of monomer 5 byproduct are formed 6linear or branched polymer with live ends is formed
2,3,4
1,3,4
3,5,6
3,4,6

14. A monomer of molecular weight 42 forms the polymer of average molecular weight 12600; the degree of polymerization of the polymer is
100
200
300
400

15. Molecular weight of a polymer is equal to
Dp x moles of monomer
Dp x Equivalent weight of monomer
Dc x Equivalent weight of monomer
Dp x molecular weight of monomer

16. Dp of polymer is ---------
No. of monomers in polymer chain
No. of reaction sites in monomer
No. of ways polymerization is carried out
None of these

17. Which of the following polymer is example of condensation polymer
Nylon
Polythene
PVC
Polypropylene

18. Condensation polymerization reaction is associateed with
Elimination of water
Elimination of methyl alcohol
Both (a) and (b)
None of these

19. The correct order of steps in the mechanism of chain polymerization is
propogation initiation - termination
dispropersation -initiation- propogation
initiation -propogation- termination
initiation termination- propogation

20. Plasticizer added during compounding of plastic
Decreases plasticity and increases flexibilty
Increases plasticity and increases flexibilty
Decreases plasticity and decreases flexibilty
Increases plasticity and decreases flexibilty

21. Glass transistion temperature is affected by
molecular weight
crystallinity
cross linking of polymer
all of these

22. Polymer used in cold countries should have
lower Tg
higher Tg
Tg = 0
none of these

23. Polystyrene has more Tg than polyethylene due to
Presence of double bond
Absence of functional group
Presence of bulky side group
Absence of polarity

24. Weight average molecular weight of polymer is determined by using techniques that are dependant on
Physical properties
Size of molecule
Osmotic pressure
Number of particale in given volume

25. Match the following 1 Aromatic rings P Vegetable oil 2 Plasticizer Q
Cellulose 3
Organic stabilizer R
High thermal and fire resistance 4
Coiled polymer s
SBR

26. Choose the correct option that is true for fillers used in compounding of plastics 1.imparts hardness tensile strength, opacity and workability 2.Increases cost 3.Amount of filler added varies upto80% 4.Extra hardness imparted by carborundum,quartz,mica to the final plastic 5.some examples are wood flour,talc,saw dust,papers pulp
A)1 ,2,5
b)1,4,5
C)3,4, d)1,3,4

27. Choose the correct option giving the application of SBR 1Manufacture of vehicle tyres 2.Used in making of floor tiles,shoe sole,gasket 3.used in making conveyor belt 4.used to manufacture panels and wings for fighter jets 5.used as adhesive
A)1,2,3
B)2,3,4
C)1,2,4
D)1,2,5

28. The weight percentage of butadiene in SBR is
D)None of these

29. Natural rubber can be used to prepare
A)Golf ball covers
B)Submarine cables
C)Both a)and b)
D)none of these

30. Epoxy resin is used for A)Surface coating
B)Skid resistant surface for industrial flooring
C)impregnation on fabric for crease resistant
D)all of these

31. Natural rubber is A)Cis 1,4-poly isoprene B)Trans 1,4-poly isoprene
C) Cis 1,2-poly isoprene
D) Trans 1,2-poly isoprene