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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

What is the order of a chemical reaction of the bellow figure, if the rate of formation of ‘C’, increases by a factor of 2.82 on doubling the concentration of ‘A’ and increases by a factor of 9 on trebling the concentration of ‘B’ ?
A 7/2
B 7/4
C 5/2
D 5/4
Correct Answer: 7/2
Higher free energy of activation of a chemical reaction (at a given temperature) implies ____________________?
A Slower rate of reaction
B Higher rate of reaction
C Higher equilibrium conversion
D Both B. and C.
Correct Answer: Slower rate of reaction
As the chemical reaction proceeds, the rate of reaction ___________________?
A Increases
B Decreases
C Remain same
D May increase or decrease depending on the type of reaction
Correct Answer: Decreases
Integral method for analysing the kinetic data is used _____________________?
A When the data are scattered
B For testing specific mechanisms with simple rate expressions
C Both A. and B.
D None of these
Correct Answer: Both A. and B.
A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be__________________?
A 2η
B 0.5η
C η/0.693
D 0.693η
Correct Answer: 2η
Inversion of cane sugar is an example of ______________________?
A Unimolecular reaction with first order
B Bimolecular reaction with second order
C Bimolecular reaction with first order
D Unimolecular reaction with second order
Correct Answer: Bimolecular reaction with first order
A typical example of an exothermic reversible reaction conducted at high pressure in industry is____________________?
A Dehydration of ethanol
B Methanol synthesis
C Reformation of methane
D Polymerisation of ethylene
Correct Answer: Dehydration of ethanol
Reaction rate of a first order reaction, which is half completed in 23 minutes will be _________________?
A 0.03 sec-1
B 0.03 min-1
C 0.03 hr-1
D 0.05 min-1
Correct Answer: 0.03 min-1
The reaction in which the rate equation corresponds to a stoichiometric equation, is called a/an _______________ reaction?
A Elementary
B Non-elementary
C Parallel
D Autokinetic
Correct Answer: Elementary
Chemical kinetics can predict the _______________ of a chemical reaction?
A Rate
B Feasibility
C Both A. & B.
D Neither A. nor B.
Correct Answer: Rate
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