Chemical Reaction Engineering MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Chemical Reaction Engineering, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Chemical Reaction Engineering MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Chemical Reaction Engineering mcq questions that explore various aspects of Chemical Reaction Engineering problems. Each MCQ is crafted to challenge your understanding of Chemical Reaction Engineering principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Chemical Reaction Engineering MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Chemical Reaction Engineering. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Chemical Reaction Engineering knowledge to the test? Let's get started with our carefully curated MCQs!

Chemical Reaction Engineering MCQs | Page 22 of 50

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Q211.
Pick out the wrong statement:

a.

Chemical reactions with high activation energy are very temperature sensitive.

b.

A flat velocity profile exists in a plug flow reactor.

c.

The residence time for all the elements of fluid in case of a P.F.R. need not be same.

d.

Half life of a reaction increases with increased initial concentration for reaction orders more than one.

Discuss
Answer: (c).The residence time for all the elements of fluid in case of a P.F.R. need not be same.
Q212.
In the reversible reaction of the type, A + B โ†” AB, in general

a.

both forward and backward reactions will be exothermic.

b.

neither of the reactions will be en-dothermic.

c.

the combination reaction will be exothermic, while the dissociation reaction will be endothermic.

d.

the combination reaction will be endothermic, while the dissociation reaction will be exothermic.

Discuss
Answer: (c).the combination reaction will be exothermic, while the dissociation reaction will be endothermic.
Q213.
A batch reactor is

a.

suitable for gas-phase reactions on commercial scale.

b.

suitable for liquid phase reactions involving small production rate.

c.

least expensive to operate for a given rate.

d.

most suitable for very large production rate.

Discuss
Answer: (b).suitable for liquid phase reactions involving small production rate.
Q214.
For an isothermal second order aqueous phase reaction, A โ†’ B, the ratio of the time required for 90% conversion to the time required for 45% conversion is

a.

2

b.

4

c.

11

d.

22

Discuss
Answer: (c).11
Q215.
A chemical reaction is of zero order, when the reaction rate is (where, Cแด€ = concentration of reactant)

a.

โˆ Cแด€.

b.

โˆ 1/Cแด€.

c.

independent of temperature.

d.

none of these.

Discuss
Answer: (d).none of these.
Q216.
An imbalanced chemical reaction equation is against the law of

a.

multiple proportion

b.

conservation of mass

c.

constant proportion

d.

none of these

Discuss
Answer: (b).conservation of mass
Q217.
For the chemical reaction P โ†’ Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cโ‚šโฟ, then what is the value of 'n' for this chemical reaction ?

a.

1

b.

2

c.

3

d.

0

Discuss
Answer: (a).1
Q218.
Which of the following is a characteristic of an ideal plug flow reactor ?

a.

Axial dispersion

b.

Flat velocity profile

c.

Uniform mixing

d.

None of these

Discuss
Answer: (b).Flat velocity profile
Q219.
Velocity of a reaction depends upon the

a.

nature of the reactants.

b.

concentration of the reactants.

c.

temperature at which the reaction is carried.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q220.
Threshold energy in a reaction is equal to the

a.

activation energy

b.

normal energy of reactants

c.

sum of (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).sum of (a) & (b)
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