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 46 of 50

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Q451.
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.

a.

less than

b.

equal to

c.

more than

d.

equal to or more than

Discuss
Answer: (d).equal to or more than
Q452.
B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.

a.

Langmuir

b.

Freundlich

c.

Tempkin

d.

none of these

Discuss
Answer: (a).Langmuir
Q453.
In a chemical reaction, repesented by, A โ†’ B , it is observed that the

(i) rate of reaction increases by a factor of 4 on doubling the concentration of the reactant.
(ii) rate of reaction increases by a factor of 9 on trebling the concentration of the reactant.

Then the rate of the reaction is proportional to(where, Cแด€ = contentration of the reactant)

a.

Cแด€

b.

Cแด€²

c.

Cแด€³

d.

Cแด€โด

Discuss
Answer: (b).Cแด€²
Q454.
An example of autothermal reactor operation is

a.

sulphur dioxide oxidation

b.

ethylene oxidation

c.

benzene oxidation

d.

ammonia synthesis

Discuss
Answer: (b).ethylene oxidation
Q455.
For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of

a.

ideal plug flow

b.

bypass

c.

dead zone

d.

chanelling

Discuss
Answer: (c).dead zone
Q456.
For reaction, P + 2 โ†’ 3R, molar rate of consumption of P is

a.

double of that of Q.

b.

same as that of Q.

c.

half of that of Q.

d.

2/3rd of that of Q.

Discuss
Answer: (c).half of that of Q.
Q457.
If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst

a.

porosity is very important.

b.

porosity is of less importance.

c.

internal surface area is utilised efficiently.

d.

none of these.

Discuss
Answer: (b).porosity is of less importance.
Q458.
The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is

a.

0.875

b.

0.5

c.

0.425

d.

data insufficient to calculate

Discuss
Answer: (a).0.875
Q459.
What is the value of 'n' if the reaction rate of the chemical reaction A โ†’ B, is proportional to Cแด€โฟ and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

a.

1/2

b.

1/3

c.

1/9

d.

3

Discuss
Answer: (a).1/2
Q460.
A second order reaction of the form A + B โ†’ C is called a pseudo-first order reaction, when

a.

Cแด€โ‚€ = Cส™โ‚€

b.

Cแด€โ‚€ > Cส™โ‚€

c.

Cส™โ‚€ > Cแด€โ‚€

d.

Cส™โ‚€ โ‰ฅ Cแด€โ‚€

Discuss
Answer: (d).Cส™โ‚€ โ‰ฅ Cแด€โ‚€
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