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 25 of 50

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Q241.
A multiple reaction may be classified as a __________ reaction.

a.

consecutive or side

b.

parallel or side

c.

mixed

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q242.
Holding time for flow reactors is __________ the space time, for constant fluid density

a.

double

b.

triple

c.

equal to

d.

none of these.

Discuss
Answer: (c).equal to
Q243.
Pick out the wrong statement.

a.

In a multistep reaction, the slowest step is the rate determining step.

b.

In general, the rate of a reaction becomes triple for every 10°C rise in temperature.

c.

Slow chemical reactions have generally high values of activation energy.

d.

Molecularity of a reaction can not be zero but the order of a reaction can be zero.

Discuss
Answer: (b).In general, the rate of a reaction becomes triple for every 10°C rise in temperature.
Q244.
The exit age distribution of fluid leaving a vessel is used to know the

a.

activation energies of a reaction.

b.

reaction mechanism.

c.

extent of non-ideal flow in the vessel.

d.

none of these.

Discuss
Answer: (c).extent of non-ideal flow in the vessel.
Q245.
From Arhenius law, a plot of logₑ K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is

a.

k cal

b.

k cal/°K

c.

°K

d.

k cal. °K

Discuss
Answer: (c).°K
Q246.
In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ __________ (A) __________ with increase in temperature and __________ (B) __________ with increase in the mole ratio of SO₂ to air.

a.

(A) increases (B) decreases

b.

(A) decreases (B) increases

c.

(A) increases (B) increases

d.

(A) decreases (B) decreases

Discuss
Answer: (b).(A) decreases (B) increases
Q247.
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

a.

d

b.

√d

c.

d¹∙⁵

d.

d²

Discuss
Answer: (a).d
Q248.
Carrier in a catalyst increases its

a.

surface area

b.

activity

c.

performance

d.

none of these

Discuss
Answer: (a).surface area
Q249.
When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value.

a.

twice

b.

half

c.

equal

d.

none of these

Discuss
Answer: (b).half
Q250.
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

a.

increase

b.

increase exponentially

c.

decrease

d.

remain unchanged

Discuss
Answer: (c).decrease
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