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 11 of 42

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Q101.
Colligative properties of a dilute solution are those, which depend entirely upon the

a.

chemical composition of the solute.

b.

constitution of the solute.

c.

number of solute molecules contained in a given volume of the solvent.

d.

none of these.

Discuss
Answer: (b).constitution of the solute.
Q102.
Viscosity of atmospheric air may be about __________ centipoise.

a.

0.015

b.

1.5

c.

15

d.

150

Discuss
Answer: (a).0.015
Q103.
The osmotic pressure of a solution increases, if its __________ is decreased.

a.

volume

b.

solute concentration

c.

temperature

d.

none of these

Discuss
Answer: (d).none of these
Q104.
Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74x10⁻⁵ m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10⁻³. The rate of evaporation of aniline is 2.97 x 10⁻⁴. Its units are

a.

mole/s

b.

mole/cm². s

c.

mole/m² . s

d.

kmole/m² . s

Discuss
Answer: (d).kmole/m² . s
Q105.
In osmosis through a semi-permeable membrane, diffusion of the

a.

solvent is from low concentration to high concentration region.

b.

solvent is from high concentration to low concentration region.

c.

solute takes place.

d.

none of these.

Discuss
Answer: (a).solvent is from low concentration to high concentration region.
Q106.
Heat of reaction is not influenced by

a.

the route/method through which final products are obtained.

b.

the physical state (e.g., solid, liquid or gaseous) of reactants and products.

c.

whether the reaction is carried out at constant temperature or constant pressure.

d.

none of these.

Discuss
Answer: (a).the route/method through which final products are obtained.
Q107.
Pick out the wrong conversion formula for the conversion of weight units :

a.

1 tonne = 1000 kg = 22.046 lbs

b.

1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton

c.

1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons

d.

none of these

Discuss
Answer: (d).none of these
Q108.
The elevation in boiling point of a solution is proportional to the __________ of the solution.

a.

molal concentration

b.

reciprocal of the molal concentration

c.

normality

d.

molarity

Discuss
Answer: (a).molal concentration
Q109.
Pick out the wrong statement.

a.

One kg-mole of an ideal gas occupies 22.4 m³ at N.T.P.

b.

One lb-mole of an ideal gas occupies 359 ft³ at N.T.P.

c.

One gm-mole of an ideal gas occupies 22.4 litres (i.e., 22400 c.c) at N.T.P.

d.

Density of dry air at N.T.P. is 1 gm/litre.

Discuss
Answer: (d).Density of dry air at N.T.P. is 1 gm/litre.
Q110.
1 Pascal (unit of pressure) is equal to __________ N/m².

a.

10

b.

1

c.

0.1

d.

1000

Discuss
Answer: (b).1
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