Stoichiometry MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Stoichiometry, 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 Stoichiometry 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 Stoichiometry mcq questions that explore various aspects of Stoichiometry problems. Each MCQ is crafted to challenge your understanding of Stoichiometry 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 Stoichiometry 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 Stoichiometry. 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 Stoichiometry knowledge to the test? Let's get started with our carefully curated MCQs!

Stoichiometry MCQs | Page 9 of 42

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Q81.
Equal masses of CH₄ and H₂ are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is

a.

1/9

b.

8/9

c.

1/2

d.

5/9

Discuss
Answer: (b).8/9
Q82.
CaCO₃ contains __________ percent of Ca by weight.

a.

40

b.

48

c.

96

d.

12

Discuss
Answer: (a).40
Q83.
Solutions which distil without change in composition are called

a.

ideal

b.

saturated

c.

supersaturated

d.

azeotropic

Discuss
Answer: (d).azeotropic
Q84.
Gases having same reduced temperatures and reduced pressures

a.

deviate from ideal gas behaviour to the same degree.

b.

have nearly the same compressibility factor.

c.

both (a) and (b).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) and (b).
Q85.
Which of the following is not a unit of pressure ?

a.

Torr

b.

Newton/m²

c.

Parsec

d.

Ata, bar or pascal

Discuss
Answer: (c).Parsec
Q86.
The evaporation of aqueous solution of sugar causes its molarity to

a.

decrease. (b) increase.

b.

remain unchanged.

c.

either (a) or (b); depends on the concentration of the solution.

d.

None of the above

Discuss
Answer: (b).remain unchanged.
Q87.
One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°₂₉₈ = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about

a.

0.19

b.

0.33

c.

0.40

d.

0.67

Discuss
Answer: (a).0.19
Q88.
Volume percent for gases is equal to the

a.

weight percent.

b.

mole percent.

c.

weight percent only for ideal gases.

d.

mole percent only for ideal gases.

Discuss
Answer: (d).mole percent only for ideal gases.
Q89.
Compressibility factor of a real gas is the ratio of the actual volume to that predicted by ideal gas law. As the pressure of the gas approaches zero, the compressibility factor approaches

a.

∞

b.

0

c.

1

d.

0.24

Discuss
Answer: (c).1
Q90.
Cᵨ equals Cᵥ at

a.

0°C

b.

0°K

c.

0°F

d.

0°R

Discuss
Answer: (b).0°K
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