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 45 of 50

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Q441.
Half-life period for a first order reaction is __________ the initial concentration of the reactant.

a.

directly proportional to

b.

inversely proportional to

c.

independent of

d.

none of these

Discuss
Answer: (c).independent of
Q442.
Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.

a.

deposited

b.

chemisorbed

c.

selectivity

d.

stability

Discuss
Answer: (a).deposited
Q443.
Fluidised bed reactor is characterised by

a.

uniformity of temperature.

b.

comparatively smaller equipment.

c.

very small pressure drop.

d.

absence of continuous catalyst regeneration facility.

Discuss
Answer: (a).uniformity of temperature.
Q444.
In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure ?

a.

N₂ + O₂ ↔ 2NO

b.

PCl₃ + Cl₂ ↔ PCl₅

c.

N + 3H₂ ↔ 2NH₃

d.

2SO₂ + O₂ ↔ 2SO₃

Discuss
Answer: (a).N₂ + O₂ ↔ 2NO
Q445.
Space time equals the mean residence time

a.

when the density of the reaction mixture is constant.

b.

for large diameter tubular reactor.

c.

for narrow diameter tubular reactor.

d.

for CSTR.

Discuss
Answer: (a).when the density of the reaction mixture is constant.
Q446.
A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.

a.

4

b.

8

c.

12

d.

16

Discuss
Answer: (d).16
Q447.
What is the dispersion number for a plug flow reactor ?

a.

0

b.

∞

c.

1

d.

-1

Discuss
Answer: (a).0
Q448.
The decomposition of A into B is represented by the exothermic reaction, A ↔ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

a.

at high P and high T.

b.

at low P and high T.

c.

at low P and low T.

d.

at high P and low T.

Discuss
Answer: (c).at low P and low T.
Q449.
The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

a.

2-5%

b.

7-10%

c.

12-15%

d.

20-25%

Discuss
Answer: (b).7-10%
Q450.
If the pore diffusion controls in a catalytic reaction, the apparent activation energy Eₐ is equal to

a.

the intrinsic activation energy E.

b.

(E + Eᴅ) where Eᴅ is activation due to diffusion.

c.

(E + Eᴅ)/2

d.

Eᴅ/2

Discuss
Answer: (d).Eᴅ/2
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