Question

# Study the given flow chart carefully. K, L, P, and Q plastics are:KLP Q(a)-PolystyreneBakeliteTeflonPVC (b)-PolythenePolystyreneBakelitePVC (c)-PVC PolythenePolystyreneBakelite(d)-PVC TeflonMelamineBakeliteChoose your answer from A, B, C, and D and enter accordingly.S. No.PlasticProperty Use1PlasticX- Deforms easilyK- Used as a covering for electric wire2PlasticX- Deforms easilyL- Used as a non-stick coating on cookware3PlasticY- Becomes firmP- Used for the coating the uniform of firemen4PlasticY- Becomes firmQ- Used for making electrical switches and handles of utensils

- The K polymer says it is used for the coating of electric wires, so PVC or polyvinyl chloride is used for the coating of the electric wires. The monomer unit for the PVC is Vinyl chloride whose formula is $C{{H}_{2}}=CH-Cl$. It is also used for making raincoats, handbags, shower curtains, vinyl flooring, etc.
- The L polymer says that it is used as a non-stick coating on cookware, so Teflon is used in non-stick utensils. The monomer unit for Teflon is Tetrafluoroethene whose formula is ${{F}_{2}}C=C{{F}_{2}}$. It is used in the utensils because it is chemically very inert and has high thermal stability. It is also used in making gaskets, seals, valves, etc.