Q. __________ moulding is used for shaping of thermosetting plastics exclusively.

View solution

Q. Bristles of tooth brushes are made of

View solution

Q. Pick out the wrong statement.

View solution

Q. Starting material for the production of butadiene in India is

View solution

Q. Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used

View solution

Q. The monomer for the production of neoprene rubber is

View solution

Q. A copolymer is formed by the combination of two or more monomer molecules

View solution

Q. Thermoplastic resins usually

View solution

Q. Linear polymers are normally

View solution

Q. Alkyd resin can not be used for making

View solution

Q. Pick out the wrong statement.

View solution

Q. Main constituent of cotton fibre is

View solution

Q. Which of the following is not a thermoplastic material ?

View solution

Q. Contact lenses for eyes are made of perspex, which is nothing but

View solution

Q. The repeating units of PTFE are

View solution

Q. Low pressure Zeigler process of polythene manufacture

View solution

Q. __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).

View solution

Q. Which of the following is an elastomer ?

View solution

Q. Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.

View solution

Q. Viscose rayon is

View solution