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 10 of 50

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Q91.
The half life period of a first order reaction is

a.

always the same irrespective of the reaction.

b.

independent on initial concentration of the reactants.

c.

proportional to the initial concentration of reactants.

d.

half the specific rate constant.

Discuss
Answer: (b).independent on initial concentration of the reactants.
Q92.
The rate constant of a first order reaction depends on the

a.

concentration of the reactant.

b.

temperature.

c.

concentration of the product.

d.

time.

Discuss
Answer: (b).temperature.
Q93.
A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.

a.

catalytic

b.

autocatalytic

c.

photochemical

d.

none of these

Discuss
Answer: (b).autocatalytic
Q94.
The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is

a.

∞

b.

0

c.

1

d.

> 1

Discuss
Answer: (c).1
Q95.
Which of the following will favour the reverse reaction in a chemical equilibrium reaction ?

a.

Increasing the concentration of one of the reactants.

b.

Increasing the concentration of one or more of the products.

c.

Removal of at least one of the products at regular interval.

d.

None of these.

Discuss
Answer: (b).Increasing the concentration of one or more of the products.
Q96.
Conversion increases with increase in temperature in case of a an __________ reaction.

a.

autocatalytic

b.

irreversible

c.

reversible endothermic

d.

reversible exothermic

Discuss
Answer: (c).reversible endothermic
Q97.
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.
Q98.
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.
Q99.
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
Q100.
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
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