Q1: Pick up the non-inflammable plastic from the following:

ANS:B - Polyvinyl chloride plastics

Urea-formaldehyde resin's high tensile strength, flexural modulus, and a high heat distortion temperature, low water absorption, mould shrinkage, high surface hardness, elongation at break, and volume resistance. Cellulose acetate is the acetate ester of cellulose. Less flammable, most commonly used in the manufacture of cigarette filters.