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 21 of 42

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Q201.
For most salts, the solubility increases with rise in temperature, but the solubility of __________ is nearly independent of temperature rise.

a.

sodium chloride

b.

sodium carbonate monohydrate

c.

anhydrous sodium sulphate

d.

hypo

Discuss
Answer: (a).sodium chloride
Q202.
The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases.

a.

potential energy

b.

intermolecular forces

c.

kinetic energy

d.

total energy

Discuss
Answer: (c).kinetic energy
Q203.
If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.

a.

the solvent begins to freeze out even before

b.

it will undergo no change until

c.

it will not solidify even on

d.

none of these

Discuss
Answer: (b).it will undergo no change until
Q204.
Which of the following is not a unit of length ?

a.

Parsec

b.

Angstrom

c.

Barn

d.

Fermi

Discuss
Answer: (c).Barn
Q205.
The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be

a.

2M

b.

M/2

c.

M

d.

M/4

Discuss
Answer: (a).2M
Q206.
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xส™ and the vapour pressures of benzene and water at these conditions are pแตฅแดฎ and pแตฅแต‚ respectively. The partial pressure of benzene in air-vapour mixture is

a.

pแตฅแดฎ

b.

xส™.pแตฅแดฎ

c.

(Patm - pแตฅแต‚)xส™

d.

xส™.Patm

Discuss
Answer: (b).xส™.pแตฅแดฎ
Q207.
pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be

a.

0

b.

10

c.

7

d.

14

Discuss
Answer: (c).7
Q208.
The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is

a.

termed as relative saturation.

b.

not a function of the composition of gas mixture.

c.

called percentage saturation.

d.

not a function of the nature of vapor.

Discuss
Answer: (a).termed as relative saturation.
Q209.
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules

a.

collide without loss of energy.

b.

do work equal to loss in kinetic energy.

c.

are above the inversion temperature.

d.

exert no attractive force on each other.

Discuss
Answer: (c).are above the inversion temperature.
Q210.
With increase in the solute concentration, the specific heat of aqueous solutions

a.

increases

b.

decreases

c.

remains unchanged

d.

either (a) or (b); depends on the type of solution

Discuss
Answer: (b).decreases
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