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 24 of 42

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Q231.
The heat of vaporisation __________ with increase in pressure.

a.

increases

b.

decreases

c.

becomes zero at critical pressure

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q232.
Raoult's law is not applicable to the

a.

solutes which dissociate or associate in the particular solution.

b.

concentrated solutions.

c.

solutions containing non-volatile solute.

d.

both (b) & (c)

Discuss
Answer: (d).both (b) & (c)
Q233.
A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is

a.

N₂O₄

b.

N₂O₅

c.

N₂O₃

d.

none of these

Discuss
Answer: (b).N₂O₅
Q234.
The atomic heat capacities of all solid elements __________ with decrease in temperature.

a.

increases

b.

decreases

c.

remains unchanged

d.

approach zero at 0°C

Discuss
Answer: (b).decreases
Q235.
Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

a.

sizes of the component molecules are approximately equal.

b.

attractive forces between like and unlike molecules are approximately equal.

c.

component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution.

d.

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

Discuss
Answer: (d).all (a), (b) & (c).
Q236.
°API gravity of water at N.T.P. is about

a.

0

b.

1

c.

10

d.

100

Discuss
Answer: (c).10
Q237.
In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?

a.

Use of equation of state

b.

Fugacity co-efficient

c.

Activity co-efficient

d.

None of these

Discuss
Answer: (c).Activity co-efficient
Q238.
If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will

a.

be reduced to 1/4th.

b.

increase four times.

c.

increase two times.

d.

none of these.

Discuss
Answer: (b).increase four times.
Q239.
The OH⁻ concentration in a solution having pH value 3 is

a.

10⁻³

b.

10⁻¹⁰

c.

10⁻¹¹

d.

10⁻¹³

Discuss
Answer: (c).10⁻¹¹
Q240.
A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of

a.

3

b.

100

c.

1000

d.

none of these

Discuss
Answer: (c).1000
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