What does PVC make when heated too hot in a plastic process?     a. Esteric acid b. Charcoal c. Polyester d. Hydrochloric Acid

The term PVC used in the plastic industry stands forA) Polyvinyl chloride B) Polyvinyl carbonateC) Phosphors vanadium Chloride D) Polyvinyl carbocarbonate2- The material that can be deformed permanently by heat and pressure iscalled aA) Polymer B) ThermoplasticC) Chemical Compound D) Thermoset3- Valency of Hydroxide ion (OH) isA) -1 B) -2C) -3 D) 14- Atmosphere contains dust particles, salt grains, pollen grains, smoke,etc. which are collectively known as :A) Water vapour B) OzoneC) Aerosols D) CFC5- The Formula of Sodium Hydroxide isA) Na(OH)2 B) NaOHC) Na2(OH)3 D) Na2OH

PVC is obtained by polymerization ofSelect an answerACH2=CH-CH2ClBCH2=CH-ClCCH3-ClDCH3-CH2-Cl2

Which of the following is used in the production of Plastic?*1 pointMercuryLeadVinyl chlorideNone of these

Give reasons why thermoplastic PVC is the most commonly used type of insulation today

5.  Which process is commonly employed in the production of plastic polymers?  a. Extrusionb. Sinteringc. Forgingd. Annealing