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 12 of 50

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Q111.
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.

Discuss
Answer: (a).dehydration of ethanol.
Q112.
Study of chemical kinetics is the easiest in the case of __________ reactions.

a.

irreversible

b.

reversible

c.

surface

d.

side

Discuss
Answer: (a).irreversible
Q113.
In autocatalytic reactions,

a.

one of the reactants acts as a catalyst.

b.

one of the products acts as a catalyst.

c.

catalysts have very high selectivity.

d.

no catalyst is used.

Discuss
Answer: (b).one of the products acts as a catalyst.
Q114.
Semibatch reactor is preferred, when a/an

a.

a highly exothermic reaction is to be controlled.

b.

undersirable side reaction (at high concentration of one of the reactants) is to be avoided.

c.

a gas is to be reacted with liquid (e.g. hydrogenation of fat).

d.

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

Discuss
Answer: (d).all (a), (b), and (c).
Q115.
A consecutive reaction given below, is characterised by

a.

maxima in the concentration of A.

b.

maxima in the concentration of B.

c.

maxima in the concentration of C.

d.

high exothermicity.

Discuss
Answer: (b).maxima in the concentration of B.
Q116.
Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is as given below .

a.

use high pressure and eliminate inerts, when a > b.

b.

avoid recycle, when a > b.

c.

use batch reactor or plug flow reactor, when a > b.

d.

use CSTR with a high conversion, when a > b.

Discuss
Answer: (b).avoid recycle, when a > b.
Q117.
In case of a consecutive unimolecular type first order reaction given below, the concentration of component __________ increases continuously with time.

a.

S

b.

R

c.

A

d.

none of these

Discuss
Answer: (a).S
Q118.
For the irreversible elementary first order reaction in parallel given below, a plot of Cy Vs. Cz will give a straight line having a slope of

a.

K₂/K₁

b.

K₁/K₂

c.

K₁.K₂

d.

K₁ + K₂

Discuss
Answer: (b).K₁/K₂
Q119.
Exposure of a photographic plate to produce a latent image is an example of __________ reaction.

a.

very slow

b.

very fast

c.

photochemical

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q120.
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is

a.

1

b.

>1

c.

∞

d.

≥1

Discuss
Answer: (c).∞
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