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 24 of 50

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Q231.
Slurry reactors are characterised by the

a.

lack of intraparticle diffusion resistance.

b.

presence of two mobile phases.

c.

both (a) and (b).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) and (b).
Q232.
Limiting reactant in a chemical reaction decides the

a.

rate constant

b.

conversion

c.

reaction speed

d.

equilibrium constant.

Discuss
Answer: (b).conversion
Q233.
Consider the 'n'th order irreversible liquid phase reaction A โ†’ B. Which one of the following plots involving half life of the reaction (tโ‚/โ‚‚) and the initial reactant concentration (Cแด€โ‚€) gives a straight line plot ?

a.

Cแด€โ‚€ Vs tโ‚/โ‚‚

b.

ln Cแด€โ‚€ Vs tโ‚/โ‚‚

c.

Cแด€โ‚€ Vs ln tโ‚/โ‚‚

d.

ln Cแด€โ‚€ Vs ln tโ‚/โ‚‚

Discuss
Answer: (c).Cแด€โ‚€ Vs ln tโ‚/โ‚‚
Q234.
The rate of forward reaction, at chemical equilibrium is____the rate of backward reaction.

a.

more than

b.

less than

c.

equal to

d.

either (b) or (c)

Discuss
Answer: (c).equal to
Q235.
Kinetics of a solid catalysed reaction can best be studied in a __________ reactor.

a.

batch

b.

plug-flow

c.

mixed

d.

none of these

Discuss
Answer: (c).mixed
Q236.
The reactions of high molecularity are rare, because

a.

of very large activation energy of many bodies.

b.

of low probability of many body collisions.

c.

many body collisions are not favoured energetically.

d.

of requirement of very large concentration for such reactions.

Discuss
Answer: (b).of low probability of many body collisions.
Q237.
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.
Q238.
Pick the WRONG design guideline for a reactor in which the reactions, A โ†’ R (desired) and A โ†’ 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.
Q239.
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
Q240.
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.

Kโ‚‚/Kโ‚

b.

Kโ‚/Kโ‚‚

c.

Kโ‚.Kโ‚‚

d.

Kโ‚ + Kโ‚‚

Discuss
Answer: (b).Kโ‚/Kโ‚‚
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