M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

thumb

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

The residence time distribution of an ideal CSTR is _____________________?
A (1/η) exp (-t/η)
B η exp (-t/η)
C exp (-t/η)
D (1/η) (-t/η)
Correct Answer: exp (-t/η)
Which of the following is not a unit of reaction rate ?
A Moles for med/(surface of catalyst) (time)
B Moles formed/volume of reactor) (time)
C Mole formed/volume of catalyst) (time)
D None of these
Correct Answer: None of these
Rate of a chemical reaction is independent of the concentration of the reactants for a _________________ reaction?
A Zero order
B Third order
C Consecutive
D None of these
Correct Answer: Zero order
A batch reactor suffers from following disadvantage ?
A Poor product quality control
B High labour and handling cost
C High shutdown time requirement for emptying, cleaning and refilling
D All A., B. and C.
Correct Answer: All A., B. and C.
A catalyst inhibitor____________________?
A Lessens its selectivity
B May be useful for suppressing undesirable side reactions
C Is added in small quantity during the catalyst manufacture itself
D All A., B. and C.
Correct Answer: All A., B. and C.
Calcination reaction of limestone (CaCO3 → CaO + CO2) goes to completion in the rotary kiln, because____________________?
A CaO is not dissociated
B CO2 escapes continuously
C Of high calcination temperature
D CaO is more stable than CaCO3
Correct Answer: CO2 escapes continuously
Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?
A Langmuir adsorption isotherm
B Adsorption isobar
C Freundlich adsorption isotherm
D None of these
Correct Answer: Adsorption isobar
Promoter is added to the catalyst to improve its____________________?
A Porosity
B Sensitivity
C Surface area
D None of these
Correct Answer: Sensitivity
A batch reactor is characterised by ____________________?
A Constant residence time
B Variation in extent of reaction and properties of the reaction mixture with time
C Variation in reactor volume
D Very low conversion
Correct Answer: Variation in extent of reaction and properties of the reaction mixture with time
Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then ‘t’ for a first order reaction is given by____________________?
A k. t = ln a/(a – x)
B k. t = x/a (a – x)
C k. t = ln (a – x)/a
D k. t = ln a (a – x)/x
Correct Answer: k. t = ln a/(a – x)
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.