state correct or incorrect
1. polyster is made by polymerising polyvinyl chloride 2. the plastic used for insulating refrigerators, is teflon 3. the raw materials for making rayon ,is propene 4. synthetic fibres are good absorbers of sweat
Statement 1 is wrong as Polyester is prepared by poly-condensation of alcohol and ester.
Statement 2 is wrong as the insulation used in refrigerators is made up of Polyurethane foam.
Statement 3 is wrong as the raw material for preparation of Rayon is Cellulose.
Statement 4 is wrong as natural fibres are more efficient sweat absorbers.