Heres your answer mate.
Addition polymer: It is a polymer that forms by simple linking of monomers without the co-generation of other products.
Condensation polymer: These are any kind of polymers through a condesation reaction (where molecules join together).
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___________________________________________Addition polymers :There is no loss of simple molecules during polymerisation of atomCondensation polymers : There is loss of simple molecules during polymerisation.Addition polymers : The molecular mass of polymer is an exact multiple of molecular mass of monomer.Condensation polymers : The molecular mass of polymer is not an exact multiple of molecular mass of polymer.Addition polymers : They are formed by the addition of monomers and leave no by-products behind.Condensation polymers : They are formed by the condensation of monomers and leave behind by-products like ammonia, water etc.Addition polymers : Examples of addition polymers are : polystyrene, polyethylene, polyacrylates etc.Condensation polymers : Examples of condensation polymers are : polyester, polyamide, polyurethane, and polysiloxane.
Addition polymers are the polymers having .. 2-3 bond. . but in other hand. Condensation polymers having more then 1 working group .. like apadic acide ...
A... Polythene is made by polymerisation of ethene so it is .. additional
B... Poly tetra folro ethene is the polymer of terta folro ethene means it's also a additional ..
Bekalite is . condensation
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Polymers can be classified on the basis of molecular forces like vander waals forces, hydrogen bonds & dipole dipole interactions.They are classified as :
1 elastomers- they have elastic character & have weak intermolecular forces.Eg natural rubber
2 Fibres- thay have strong hydrogen bond or dipole dipole interactions between polymers chain.Eg nylon 66
3 Thermoplastics- they have intermolecular forces intermediate between elastomers & fibres.Eg polythene
4 Thermosetting polymers- they undergoes permanent change on heating.Eg bakelite
(i) Buna − S < polythene < Nylon 6, 6
(ii) Neoprene < polyvinyl chloride < Nylon 6
tereline , natural rubber, polystrene
Correct option C
d. will be the correct answer
Teflon is used as a material resistant to heat & chemical attack.It is also used for making gaskets, pump packings, valves, oil seals,non lubricated bearings. 3) Bakelite- the monomeric unit present is formaldehyde (HCHO) & phenol (C6H5OH).
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only addition and condensation polymers
read in the class 12 chemistry no. 2. its explained very nicely