Question

Teflon is:
A) a natural fiber
B) a synthetic fiber
C) a polymer
D) a cellulose

Answer 1

Teflon is a plastic substance which is also known as polytetrafluoroethylene. Polymerization is defined as a chemical reaction in which a combination of particles takes place and results in large repeating molecules. Polytetrafluoroethylene is a fluoropolymer.

Complete step-by-step answer: Polymers are mainly of two types, that is, natural polymers and synthetic polymers. Natural polymers are obtained from plants and animals. For example, protein, starch and cellulose, whereas synthetic polymers are the polymers that are man – made. For example, polyethene. The process of polymerization is of two types:
Additional polymerization: The addition polymerization is defined as a process in which same monomers or different monomers combine together to form a large polymer. It follows a free radical mechanism.
Condensation polymerization: The condensation polymerization is defined as a process in which molecules join together and release small molecules as a byproduct as water and methanol.
Teflon is produced when tetrafluoroethylene undergoes free radical polymerization. Tetrafluoroethylene is heated with peroxide or ammonium persulphate which acts as a catalyst at a high pressure. Teflon is a thermoplastic polymer which has high strength, toughness and self – lubrication at low temperatures. It is chemically inert and possesses high heat resistance. It is highly insoluble in most of the solvents.
$nC{{F}_{2}}=C{{F}_{2}}\to n(C{{F}_{2}}-C{{F}_{2}})$

Therefore, Teflon is a synthetic fiber. So, the correct option is (B).

Note: There are numerous uses of Teflon.
1.It is used in gears, side plates.
2.It is also used in the production of carbon fiber composites.
3.It is used in non – stick utensils.
4.Teflon shows strong anti – adhesion property. It is prone to toxic fumes and has poor resistance to radiation.