A. Ammonium alum
B. Potassium alum
C. Both A. & B.
D. Neither A. nor B.
A. Harder
B. More abrasion resistant
C. Having higher melting point
D. None of these
A. Harder
B. Stronger
C. Lighter
D. All A., B. and C.
A. Produces high density polythene
B. Uses no catalyst
C. Produces low density polythene
D. Employs very high pressure
A. Chloroethane
B. Chloroprene
C. Isoprene
D. None of these
A. An amorphous polymer
B. A natural polymeric fibre
C. Polyacrylonitrile
D. Poly-methyl-methacrylate (PMMA)
A. Phenol formaldehyde
B. An inorganic polymer
C. Polytetrafluroethylene (PTFE)
D. A monomer
A. As a plasticiser for unsaturated polyester
B. In the manufacture of synthetic rubber
C. As an anti-skimming agent in paint
D. None of these
A. Polythene
B. PVC
C. Rayon
D. Polyvinyl acetate
A. Cellulose acetate
B. Cellulose nitrate
C. PVC
D. High density polythene