A. Neutral
B. Ideal
C. Buffer
D. Zero pH
✅ The correct answer is option C.
Basic Chemical Engineering MCQs
Deformation band is absent in materials having __________ lattice crystal structure.
A. Fcc
B. Bcc
C. Hcp
D. None of these
✅ The correct answer is option C.
The Al2 O₃ content of cryolite in Hall-Heroult’s cell is maintained between __________ percent.
A. 2-5
B. 18-20
C. 12-15
D. 6-12
✅ The correct answer is option A.
Circulation of liquid metal (i.e. molten sodium) in a liquid metal cooled nuclear reactor is done by a/an __________ pump.
A. Electromagnetic
B. Axial flow
C. Diaphragm
D. Reciprocating
✅ The correct answer is option A.
Which of the following does not lower the surface tension of liquids ?
A. Fat
B. Soap
C. Detergent
D. Surfactant
✅ The correct answer is option A.
The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
A. Base and strong acid
B. Base and weak acid
C. Acid and weak base
D. None of these
✅ The correct answer is option A.
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is
A. 0
B. 0.33
C. 0.44
D. 0.25
✅ The correct answer is option C.
Heat transfer by radiation from a hot body will be most rapid, if its surface is __________ because of its higher emissivity.
A. White & rough
B. Black & rough
C. White & polished
D. Black & polished
✅ The correct answer is option B.
Rate of chemical reaction is not much affected, if the reactants are in __________ form.
A. Solids
B. Liquids
C. Either A or B
D. Gaseous
✅ The correct answer is option C.
In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be
A. Conduction
B. Radiation
C. Natural convection
D. Forced convection
✅ The correct answer is option B.