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 5 of 42

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Q41.
The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.

a.

increases

b.

decreases

c.

remains unchanged

d.

increases linearly

Discuss
Answer: (b).decreases
Q42.
Mass number of an atom is the sum of the numbers of

a.

neutrons and protons

b.

protons and electrons

c.

neutrons and electrons

d.

both(a)&(b)

Discuss
Answer: (d).both(a)&(b)
Q43.
Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.

a.

compressibility

b.

molecular weight

c.

humidity

d.

none of these

Discuss
Answer: (a).compressibility
Q44.
A long cylinder and a sphere both of 5 cms diameter are made from the same porous material. The flat ends of cylinder are sealed. Both the cylinder and sphere are saturated with the same solution of sodium chloride. Later both the objects are immersed for a short and equal interval of time in a large tank of water which is well agitated. The fraction of salt remaining in the cylinder and the sphere are Xc and Xs respectively. Which of the following statement is correct ?

a.

Xc > Xs

b.

Xc = Xs .

c.

Xc < Xs

d.

Xc greater/less than Xs depending on the length of the cylinder

Discuss
Answer: (c).Xc < Xs
Q45.
The temperature at which the second Virial co-efficient of a real gas is zero is called the

a.

eutectic point

b.

Boyle temperature

c.

boiling point

d.

critical temperature

Discuss
Answer: (a).eutectic point
Q46.
The hydroxyl ion (OH⁻) concentration in a solution having pH value 3 will be

a.

10⁻¹¹

b.

10⁻¹⁰

c.

10⁻³

d.

10⁻⁴

Discuss
Answer: (a).10⁻¹¹
Q47.
Boiling point of a solution as compared to that of the corresponding solvent is

a.

less

b.

more

c.

same

d.

either more or less; depends upon the solvent

Discuss
Answer: (b).more
Q48.
Real gases approach ideal behaviour at

a.

high pressure & high temperature.

b.

low pressure & high temperature.

c.

high pressure & low temperature.

d.

low pressure & low temperature.

Discuss
Answer: (b).low pressure & high temperature.
Q49.
1 bar is almost equal to __________ atmosphere.

a.

1

b.

10

c.

100

d.

1000

Discuss
Answer: (a).1
Q50.
Kopp's rule is useful for the determination of

a.

molal heat capacities of gases.

b.

heat capacities of solids.

c.

activation energy.

d.

heat capacities of gases.

Discuss
Answer: (b).heat capacities of solids.
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