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 8 of 50

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Q71.
The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (c).2
Q72.
Pick out the correct statement

a.

Reactions with high activation energies are very temperature sensitive.

b.

Chemical equilibrium is a static state.

c.

A photochemical reaction is catalysed by light.

d.

A chemical reaction occurs when the energy of the reacting molecule is less than the activation energy of the reaction.

Discuss
Answer: (a).Reactions with high activation energies are very temperature sensitive.
Q73.
If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (c).2
Q74.
For a zero order chemical reaction, the

a.

half life period is directly proportion to the initial concentration of the reac-tants.

b.

plot of products concentration with time is a straight line through the origin.

c.

products concentration increases linerarly with time.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q75.
BET apparatus

a.

measures the catalyst surface area directly.

b.

operates at very high pressure.

c.

is made entirely of stainless steel.

d.

none of these.

Discuss
Answer: (d).none of these.
Q76.
Radioactive decay follows __________ order kinetics.

a.

first

b.

second

c.

third

d.

zero.

Discuss
Answer: (a).first
Q77.
The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy.

a.

activation

b.

potential

c.

binding

d.

threshold

Discuss
Answer: (a).activation
Q78.
The increase in the rate of reaction with temperature is due to

a.

increase in the number of effective collisions.

b.

decrease in activation energy.

c.

increase in the average kinetic energy of the reacting molecules.

d.

none of these.

Discuss
Answer: (b).decrease in activation energy.
Q79.
A catalyst loses its activity due to

a.

loss in surface area of the active component.

b.

agglomeration of metal particles caused by thermal sintering of the solid surface.

c.

covering of the catalytic active sites by a foregin substance.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q80.
'N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

a.

first

b.

second

c.

third

d.

any

Discuss
Answer: (d).any
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