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 16 of 42

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Q151.
Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is

a.

20

b.

32.2

c.

45.35

d.

58.65

Discuss
Answer: (d).58.65
Q152.
Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?

a.

Chlorine

b.

Nitrogen

c.

Ethane

d.

All the gases will have the same KE

Discuss
Answer: (d).All the gases will have the same KE
Q153.
What fraction of the total pressure is exerted by oxygen, if equal weights of oxygen and methane are mixed in an empty vessel at 25°C ?

a.

2/3

b.

1/3

c.

1/2

d.

1/3 x 298/273

Discuss
Answer: (b).1/3
Q154.
On mixing 56 gm of CaO with 63 gm of HNO₃, the amount of Ca(NO₃)₂ formed is __________ gm.

a.

82

b.

164

c.

41

d.

8.2

Discuss
Answer: (a).82
Q155.
The pressure under which liquid and vapor can co-exit at equilibrium is called the __________ vapor pressure.

a.

limiting

b.

real

c.

saturated

d.

normal

Discuss
Answer: (c).saturated
Q156.
The total number of atoms in 8.5 gm of NH₃ is __________ x 10²³.

a.

9.03

b.

3.01

c.

1.204

d.

6.02

Discuss
Answer: (a).9.03
Q157.
The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.

a.

1/2

b.

4

c.

√2

d.

1/4

Discuss
Answer: (c).√2
Q158.
Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be __________ atmosphere.

a.

0.5

b.

1

c.

1.5

d.

2

Discuss
Answer: (b).1
Q159.
In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.

a.

increase

b.

decrease

c.

remain unchanged

d.

none of these

Discuss
Answer: (b).decrease
Q160.
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the

a.

relative humidity.

b.

relative saturation.

c.

percentage saturation.

d.

none of these.

Discuss
Answer: (c).percentage saturation.
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