Poly-tetra-fluoro ethylene (PTFE) is known as_________________?
Poly-tetra-fluoro ethylene (PTFE) is known as_________________?
A. Dacron
B. Teflon
C. Bakelite
D. Celluloid
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Alkyd resin e.g., glyptal resin formed by Phthalic anhydride and glycerine is not used_______________?
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 materialsThe generic chemical name for the class of polymers which are commercially known as nylons is______________________?
The generic chemical name for the class of polymers which are commercially known as nylons is______________________?A. Polyolefins
B. Polyamide
C. Polyacrylate
D. PolyurethaneRexine (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten_______________?
Rexine (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten_______________?A. Teflon
B. Bakelite
C. SBR
D. PVCStyrene butadiene rubber (SBR) is never used for making__________________?
Styrene butadiene rubber (SBR) is never used for making__________________?A. Coated fabrics
B. Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C. Gaskets
D. Soles of shoes______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?
______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?A. Epoxy
B. Amino
C. Alkyd
D. Phenolic_____________ scrap can be recycled & reutilised?
_____________ scrap can be recycled & reutilised?A. Bakelite
B. Epoxy resin
C. Polythene
D. None of these