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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 an autocatalytic reactor, the suitable reactor set up is__________________?
A P.F. reactors in series
B CSTR in series
C CSTR followed by P.F. reactor
D P.F. reactor followed by CSTR
Correct Answer: CSTR followed by P.F. reactor
Which of the following factors control the design of a fluid-solid reactor ?
A Reaction kinetics for single particle
B Size distribution of solids being treated
C Flow patterns of solids and fluid in the reactor
D All A., B. and C.
Correct Answer: All A., B. and C.
______________ explains the mechanism of catalysis?
A Activated complex theory
B Collision theory
C Thermodynamics
D None of these
Correct Answer: Activated complex theory
If Thiele modulus is ________________, then the pore diffusion resistance in a catalyst may be considered as negligible?
A 0
B ∞
C < 0.5
D > 0.5
Correct Answer: 0
Rate of a chemical reaction is not influenced by the__________________?
A Catalyst
B Temperature
C Reactants concentration
D Number of molecules of reactants taking part in a reaction
Correct Answer: Number of molecules of reactants taking part in a reaction
The irreversible reaction is a special case of reversible reaction, if the________________?
A Equilibrium constant is 1
B Conversion of the reactant at equilibrium condition is zero
C Reactant concentration at equilibrium condition is zero
D All A., B. and C.
Correct Answer: Reactant concentration at equilibrium condition is zero
For multiple reactions, the flow pattern within the vessel affects the ____________________?
A Size requirement
B Distribution of reaction products
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
A catalyst is said to be a negative catalyst, if it ___________________?
A Retards the rate of reaction
B Reduces the value of equilibrium constant
C Does not initiate the reaction
D All A., B. and C.
Correct Answer: Retards the rate of reaction
The following half life data are available for the irreversible liquid phase reaction A → products. The overall order of reaction is __________________?
A 0.5
B 1
C 1.5
D 2
Correct Answer: 1
The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?
A Activation
B Potential
C Binding
D Threshold
Correct Answer: Activation
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