employs a pressure of 30 kgf/cm2.
achieves an yield of 95-98% based on ethylene.
produces very low density polythene.
does not use any catalyst for polymerisation.
✅ The correct answer is option B.
Chemical Engineering MCQs
Maximum consumption of polymers is in
electrical insulation
toys making
coating and films
packaging
✅ The correct answer is option C.
Dacron is a
condensation polymerisation product of hexamethylene diamine and adipic acid.
condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol.
thermosetting material.
none of these.
✅ The correct answer is option D.
Rain coats are made of
neoprene
PVC
polyurathane
SBR
✅ The correct answer is option B.
Orlan fibre which is used as a wool sub stitute is
an amorphous polymer.
a natural polymeric fibre.
polyacrylonitrile.
polymethylmethacrylate (PMMA).
✅ The correct answer is option C.
For a single component two phase mixture, the number of independent variable properties are
A. Two
B. One
C. Zero
D. Three
✅ The correct answer is option B.
If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.
A. 100
B. 50
C. 205
D. 200
✅ The correct answer is option D.
Boiling of liquid is accompanied with increase in the
A. Vapor pressure
B. Specific Gibbs free energy
C. Specific entropy
D. All of the above
✅ The correct answer is option A.
__________ increases with increase in pressure.
A. The melting point of wax
B. The boiling point of a liquid
C. Both A and B
D. Neither A nor B
✅ The correct answer is option C.
Buna-S is a __________ material.
fibrous
plastic
resinous
rubbery
✅ The correct answer is option D.