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1. a) How are Polymers classified?
b) Define polymerization. Differentiate addition and condensation polymerization.
2. a) Explain the free radical mechanism of addition polymerization taking ethylene as a monomer.
b) Give the synthesis and applications of Teflon.
3. a)Differentiate between thermoplastics and thermosetting plastics.
b)What is glass transition temperature?Discuss the following factors affecting GTT
i) Flexibility ii) Intermolecular forces.
4. a) Explain the manufacture and applications of the following high polymers:
i)Polymethylmethacrylates (plexi glass) ii) polyurethanes.
b) What are elastomers? Mention the advantages of synthetic rubber over natural rubber.
5. a) What are the deficiencies of natural rubber? What is vulcanization of rubber.
b) Explain the manufacture of Silicone rubber. Mention their applications.
A large tower is to be supported by a series of steel wires; it is estimated that the load on every wire will be 13,300 N (3000 lbf). Verify the minimum needed wire diameter, assum
Reactants Acrylonitrile and Dimethylamine to form product DMAPA i.e. Dimethylaminopropylamine. What is the specific consumption of reactants to produce 1mole of DMAPA
#explain the process of x-ray production..
Q. What are lubricants? Explain properties of lubricating oil. Ans. Lubricants: The metal to metal frictional resistance can be minimized by using certain suitable substanc
putting example of literature review
For high speed of reading and storing the information's in a computer, the use is made of Ferrites.
What is phosphate conditioning in water softening?
Introduction : You will recall previous study of this course about the various duties and activities of a lab staff that facilitate management of the laboratory in an efficient ma
In what manner hot worked and cold worked products differ? Hot working of a metal is carried out above its re-crystallization temperature. In this case the metal is not strain
In what important respect does the conductivity of a conductor differ from that of an intrinsic Semiconductor. It is well known that the conductivity of a conductor i
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