Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Hardness, rigidity & brittleness Densities Melting point Tensile strength Hardness, rigidity & brittleness Densities Melting point Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Non sulphonated hard bakelites are not used for making Formica table tops Fountain pen barrels Combs Ion-exchange resins Formica table tops Fountain pen barrels Combs Ion-exchange resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Does not vary with temperature rise Increases with increase in temperature Decreases with increase in temperature Decreases with increase in molecular weight Does not vary with temperature rise Increases with increase in temperature Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent. 1500-2000 1-1000 2000-2500 1000-1500 1500-2000 1-1000 2000-2500 1000-1500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Hot drink (e.g, tea) cups are usually made of PVC Polystyrene Polypropylene Polythene PVC Polystyrene Polypropylene Polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polystyrene is a __________ plastic at room temperature. None of these Malleable Brittle Ductile None of these Malleable Brittle Ductile ANSWER DOWNLOAD EXAMIANS APP
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