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 1 of 50

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Q1.
What is the order of the following chemical reaction, 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

Discuss
Answer: (a).7/2
Q2.
For a reaction of the following type, the rate of reaction (- rₓ) is given by

a.

(K₁+K₁)Cₓ

b.

(K₁+K₂+K₃)Cₓ

c.

K₁Cᵥ - K₂Cₓ

d.

(K₁-K₂)Cₓ

Discuss
Answer: (c).K₁Cᵥ - K₂Cₓ
Q3.
In a consecutive reaction system given below, when E₁ is much greater than E₂, the yield of B increases with the

a.

increase of temperature.

b.

decrease of temperature.

c.

increase in initial concentration of A.

d.

decrease in initial concentration of A.

Discuss
Answer: (a).increase of temperature.
Q4.
For the irreversible elementary reactions in parallel like given below, the rate of disappearance of 'X' is equal to

a.

Cᴀ(K₁+K₂)

b.

Cᴀ(K₁+K₂)/2

c.

Cᴀ.K₁/2

d.

Cᴀ.K₂/2

Discuss
Answer: (a).Cᴀ(K₁+K₂)
Q5.
For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q6.
Effective diffusivity (DE) in a catalyst pellet is related to molecular diffusivity (DN) and Knudsen diffusivity (DK) as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q7.
For a vapour phase catalytic reaction (A + B → P) which follows the Ridel mechanism and the reaction step is rate controlling, the rate of reaction is given by (reaction rate is irreversible, product also absorbs).

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q8.
For a series of reactions given below, having k1 << k2, the reaction system can be approximated as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q9.
What is the Thiele modulus of the solid catalysed first order reaction given below, if the pore diffusion offers negligible resistance to reaction ?

a.

< 5

b.

< 0.5

c.

> 1

d.

5

Discuss
Answer: (b).< 0.5
Q10.
The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of following integral is

a.

0

b.

1

c.

∞

d.

√2π

Discuss
Answer: (b).1
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