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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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

For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the ______________ adsorption?
A Physical
B Chemical
C Both A. and B.
D Neither A. nor B.
Correct Answer: Chemical
In the reversible reaction of the type, A + B ⇌ AB, in general__________________?
A Both forward and backward reactions will be exothermic
B Neither of the reactions will be endothermic
C The combination reaction will be exothermic, while the dissociation reaction will be
D The combination reaction will be endothermic, while the dissociation reaction will be
Correct Answer: The combination reaction will be exothermic, while the dissociation reaction will be
In case of physical adsorption, the heat of adsorption is of the order of _____________ kcal/kg mole?
A 100
B 1000
C 10000
D 100000
Correct Answer: 100
Which of the following is a controlling factor in very fast heterogeneous reaction ?
A Heat and mass transfer effects
B Pressure
C Temperature
D Composition of reactant
Correct Answer: Heat and mass transfer effects
For a zero order chemical reaction, the__________________?
A Half life period is directly proportion to the initial concentration of the reactants
B Plot of products concentration with time is a straight line through the origin
C Products concentration increases linearly with time
D All A., B. and C.
Correct Answer: All A., B. and C.
An imbalanced chemical reaction equation is against the law of________________?
A Multiple proportion
B Conservation of mass
C Constant proportion
D None of these
Correct Answer: Conservation of mass
______________ is the response curve for a step input signal from a reactor ?
A S-curve
B C-curve
C I-curve
D None of these
Correct Answer: C-curve
‘N’ plug flow reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for _______________ order reactions?
A First
B Second
C Third
D Any
Correct Answer: Any
Enzymes are destroyed, when the_______________?
A Temperature is very high
B Reactant’s concentration is very high
C Reactant’s concentration is very low
D Reaction rate is independent of the reactant’s concentration
Correct Answer: Temperature is very high
Ionic reactions occur in____________________?
A Solid state only
B Liquid state only
C Solutions
D Any state
Correct Answer: Solutions
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