carbon atoms in the ring.
carbon atoms in the linear polymer chain.
nitrogen atoms in the ring.
hydrogen atoms in the ring.
✅ The correct answer is option B.
Chemical Engineering MCQs
Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
polyacrylonitrile
polyamide
saturated polyester
alkyd resin
✅ The correct answer is option A.
Equation which relates pressure, volume and temperature of a gas is called the
A. Equation of state
B. Gibbs Duhem equation
C. Ideal gas equation
D. None of these
✅ The correct answer is option A.
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber ?
Carbon
Alkylated diphenyl amine
Thiokol
Magnesium
✅ The correct answer is option B.
Entropy, which is a measure of the disorder of a system is
A. Independent of pressure
B. Independent of temperature
C. Zero at absolute zero temperature for a perfect crystalline substance
D. All of the above
✅ The correct answer is option C.
Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.
A. 270
B. 327
C. 300
D. 540
✅ The correct answer is option B.
Helmholtz free energy (A) is defined as
A. A = H – TS
B. A = E – TS
C. A = H + TS
D. None of these
✅ The correct answer is option B.
Commercial production of polypropylene employs __________ polymerisation.
emulsion
suspension
solution
bulk
✅ The correct answer is option C.
At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.
A. Eutcetic
B. Triple
C. Plait
D. Critical
✅ The correct answer is option B.
Polycaprolactum (Nylon – 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.
50
75
90
99
✅ The correct answer is option C.