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 19 of 50

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Q181.
A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

a.

Large reactor followed by smaller one.

b.

Smaller reactor followed by larger one.

c.

Either of the arrangement (a) or (b) will give the same yield.

d.

Data insufficient, can't be predicted.

Discuss
Answer: (c).Either of the arrangement (a) or (b) will give the same yield.
Q182.
Pick out the correct statement.

a.

A lower temperature favours the reaction of lower activation energy.

b.

The dispersion number for a reactor/vessel is uL/D.

c.

The rate controlling step in a reaction involving many steps is the fastetst step.

d.

Pore volume and porosity of a catalyst is measured by Brunaver-Emmet-Teller (BET) technique.

Discuss
Answer: (a).A lower temperature favours the reaction of lower activation energy.
Q183.
If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion.

a.

film

b.

ash layer

c.

pore

d.

none of these

Discuss
Answer: (a).film
Q184.
The units of frequency factor in Arhenious equation

a.

are the same as those of the rate constant.

b.

depend on the order of the reaction.

c.

depend on temperature, pressure etc. of the reaction.

d.

are cycles per unit time.

Discuss
Answer: (a).are the same as those of the rate constant.
Q185.
Which of the following is not a chemical step in a fluid solid catalytic reaction ?

a.

Surface chemical reaction

b.

Adsorption

c.

Desorption

d.

None of these

Discuss
Answer: (d).None of these
Q186.
A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to

a.

lose a proton.

b.

gain a proton.

c.

lose an electron

d.

none of these.

Discuss
Answer: (a).lose a proton.
Q187.
A stirred tank reactor compared to tubular-flow reactor provides

a.

more uniform operating conditions.

b.

permits operation at the optimum temperature for a long reaction time.

c.

higher overall selectivity for a first order consecutive reaction.

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q188.
A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is

a.

0.33

b.

0.5

c.

1

d.

data insufficient, can't be predicted

Discuss
Answer: (c).1
Q189.
Rate of an autocatalytic chemical reaction is a function of

a.

temperature only.

b.

pressure only.

c.

composition only.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q190.
Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?

a.

Langmuir adsorption isotherm

b.

Adsorption isobar

c.

Freundlich adsorption isotherm

d.

None of these

Discuss
Answer: (b).Adsorption isobar
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