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 13 of 42

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Q121.
Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half, will result in __________ in the volume of the gas.

a.

no change

b.

doubling

c.

1/4th reduction

d.

four fold increase

Discuss
Answer: (b).doubling
Q122.
pH value of an alkaline solution is

a.

7

b.

> 7

c.

< 7

d.

constant over a wide range

Discuss
Answer: (b).> 7
Q123.
1 kg of calcium carbide (CaC₂) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?

a.

5

b.

10

c.

15

d.

20

Discuss
Answer: (b).10
Q124.
According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition.

a.

No component is concentrated at the surface of the solution.

b.

The component molecules are non polar and are of almost equal size.

c.

In the formation of solution, chemical combination/molecular association between unlike molecules takes place.

d.

The attractive forces between like and unlike molecules are almost equal.

Discuss
Answer: (c).In the formation of solution, chemical combination/molecular association between unlike molecules takes place.
Q125.
Kinematic viscosity of 1 m² /second is equivalent to __________ stokes.

a.

10

b.

102

c.

103

d.

104

Discuss
Answer: (d).104
Q126.
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
Q127.
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
Q128.
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
Q129.
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
Q130.
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.
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