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 37 of 42

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Q361.
1 BTU/ft³ is approximately equal to __________ kcal/m³.

a.

1

b.

9

c.

4

d.

252

Discuss
Answer: (b).9
Q362.
At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be

a.

significantly less than 4.69 atm.

b.

nearly equal to 4.69 atm.

c.

significantly more than 4.69 atm.

d.

indeterminate due to lack of data

Discuss
Answer: (c).significantly more than 4.69 atm.
Q363.
Pick out the wrong statement.

a.

Raoult's law holds good for the solubility of polar gases in non-polar liquids.

b.

Molecules with symmetrical arrangement (e.g., CH₄ and CCl₄) are non-polar.

c.

Most of the hydrocarbons are nonpolar.

d.

Generally, nonpolar compounds are chemically inactive, conduct electricity poorly and do not ionise.

Discuss
Answer: (a).Raoult's law holds good for the solubility of polar gases in non-polar liquids.
Q364.
Which of the following ratios defines the recycle ratio in a chemical process ?

a.

Gross feed stream/recycle feed stream

b.

Recycle stream/fresh feed stream

c.

Recycle stream/gross feed stream

d.

None of these

Discuss
Answer: (b).Recycle stream/fresh feed stream
Q365.
NaOH contains __________ percent oxygen.

a.

1

b.

10

c.

16

d.

40

Discuss
Answer: (d).40
Q366.
Addition of a non-volatile solute to a solvent produces a __________ in its solvent.

a.

freezing point elevation

b.

boiling point depression

c.

vapor pressure lowering

d.

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

Discuss
Answer: (c).vapor pressure lowering
Q367.
The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

a.

basic

b.

more acidic

c.

neutral

d.

of the same acidity

Discuss
Answer: (a).basic
Q368.
Hess's law of constant heat summation is based on conservation of mass. It deals with

a.

equilibrium constant.

b.

reaction rate.

c.

changes in heat of reaction.

d.

none of these.

Discuss
Answer: (c).changes in heat of reaction.
Q369.
Percentage saturation of a vapor bearing gas is always __________ the relative saturation.

a.

higher than

b.

smaller than

c.

equal to

d.

either (a) or (b); depends on the system

Discuss
Answer: (b).smaller than
Q370.
Cᵨ is expressed in S.I. unit as

a.

J/kg.°K

b.

0°K

c.

W/m². °C

d.

W/m. °K

Discuss
Answer: (a).J/kg.°K
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