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 28 of 42

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Q271.
Ideal solution is formed, when its components have zero

a.

heat of mixing.

b.

volume change.

c.

both (a) & (b).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) & (b).
Q272.
Pick out the wrong statement:

a.

A vapor is termed as a saturated vapor, if its partial pressure equals its equilibrium vapor pressure.

b.

A vapor whose partial pressure is less than its equilibrium vapor pressure, is termed as a 'superheated vapor'.

c.

The temperature at which a vapor is saturated is termed as the boiling point.

d.

The difference between the existing temperature of a vapor and its saturation temperature (i.e. dew point) is called its 'degree of superheat'.

Discuss
Answer: (c).The temperature at which a vapor is saturated is termed as the boiling point.
Q273.
'Giga' stands for

a.

10⁹

b.

10⁻¹²

c.

10¹²

d.

10¹⁵

Discuss
Answer: (a).10⁹
Q274.
The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the

a.

phase rule

b.

experimental data

c.

emperical equations

d.

theoretical equations

Discuss
Answer: (a).phase rule
Q275.
The chemical nature of an element is independent of

a.

its atomic number.

b.

the number of protons or electrons present in it.

c.

the number of neutrons present in it.

d.

none of these.

Discuss
Answer: (c).the number of neutrons present in it.
Q276.
The heat change for the reaction, C(s) + 2S(s) → CS₂(l), is 104.2 kJ. It represents the heat of

a.

formation

b.

solution

c.

combustion

d.

fusion

Discuss
Answer: (a).formation
Q277.
A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)

a.

350

b.

485

c.

140

d.

345

Discuss
Answer: (a).350
Q278.
The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour

a.

measures the elevation in boiling point.

b.

is not dependent on the temperature.

c.

is a function of the liquid phase composition.

d.

measures the depression in freezing point.

Discuss
Answer: (c).is a function of the liquid phase composition.
Q279.
Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the

a.

temperature.

b.

volume of solution.

c.

moles of non-volatile solute.

d.

none of these.

Discuss
Answer: (a).temperature.
Q280.
The effect of pressure on the heat capacity of the gases __________ is negligible.

a.

at pressure below one atmosphere

b.

below the critical temperature

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
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