Polymer Technology

_______________ practically possess no elasticity?

Byadmin March 7, 2019August 25, 2021

_______________ practically possess no elasticity?

A. Vulcanite or ebonite
B. Spandex fibre
C. Polysulphide rubber
D. Epoxy resin

Polymer Technology

Bakelite is a/an ______________________?

Bakelite is a/an ______________________?

A. Addition polymer
B. Elastomer
C. Thermoplastic
D. None of these

Read More Bakelite is a/an ______________________?
Polymer Technology

Condensation polymerisation of _____________ produces Bakelite?

Condensation polymerisation of _____________ produces Bakelite?

A. Propylene
B. Phenol & formaldehyde
C. Phenol & acetaldehyde
D. Urea & formaldehyde

Read More Condensation polymerisation of _____________ produces Bakelite?
Polymer Technology

Which of the following is not an elastomer ?

Which of the following is not an elastomer ?

A. Polyisoprene
B. Neoprene
C. Nitrile-butadiene
D. None of these

Read More Which of the following is not an elastomer ?
Polymer Technology

______________ is an addition polymer ?

______________ is an addition polymer ?

A. Nylon
B. Bakelite
C. Polythene
D. None of these

Read More ______________ is an addition polymer ?
Polymer Technology

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

A. 7 kgf/cm2 and 70 °C
B. 1000 kgf/cm2 and 100°C
C. 7 kgf/cm2 and 700°C
D. 1 kgf/cm2 (gage) and 70°C

Read More Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?
Polymer Technology

Bristles of tooth brushes are made of_______________?

Bristles of tooth brushes are made of_______________?

A. Nylon-6
B. Nylon-66
C. Polystyrene
D. PVC

Read More Bristles of tooth brushes are made of_______________?

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