A. Melamine resins
B. Teflon
C. Dacron
D. None of these
Related Mcqs:
- Which of the following polymers does not belong to the class of Polyacrylate polymer ?
A. PMMA
B. Polyacrylonitrile
C. Poly Ethyl acrylate
D. None of these - Condensation polymerisation of formaldehyde with _____________ does not produce phenolic resin?
A. Resorcinol
B. Phenol
C. Para-cresol
D. Melamine - Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the ___________________?
A. Electrical insulation purpose
B. Tanning of leather
C. Strengthening of plaster of Paris
D. Decorative laminates - Bakelite (phenol-formaldehyde) resin cannot be used as________________?
A. Decorative paint
B. Decorative laminates
C. Electrical insulation
D. Glass reinforced plastics - Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used_______________?
A. For surface coating of automobiles & air crafts
B. For fibre making
C. As plasticiser for PVC & nitrocellulose
D. For film forming materials - Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?
A. Water impermeable cellophane
B. Polythene
C. Cellulose acetate
D. Teflon - Branched chair polymers as compared to linear polymers have _________________?
A. Higher melting point
B. Higher tensile strength
C. Lower density
D. None of these - 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 ___________________?
A. Densities
B. Melting point
C. Tensile strength
D. Hardness, rigidity & brittleness - Branched chain polymers compared to linear polymers have higher ____________________?
A. Density
B. Tensile strength
C. Melting point
D. Degree of irregularity in atomic packing - The generic chemical name for the class of polymers which are commercially known as nylons is______________________?
A. Polyolefins
B. Polyamide
C. Polyacrylate
D. Polyurethane
