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 7 of 42

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Q61.
At room temperature, the product [H⁺] [OH⁻] in a solution is 10⁻¹⁴ moles/litre. If, [OH⁻] = 10⁻⁶ moles/litre, then the pH of the solution will be

a.

6

b.

8

c.

10

d.

12

Discuss
Answer: (b).8
Q62.
Molar heat capacity of water in equilibrium with ice at constant pressure is

a.

0

b.

∞

c.

1

d.

none of these

Discuss
Answer: (b).∞
Q63.
If pH value of a solution is 8, then its pOH value will be

a.

6

b.

1

c.

7

d.

10

Discuss
Answer: (a).6
Q64.
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.
Q65.
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
Q66.
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
Q67.
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.
Q68.
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.
Q69.
In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the

a.

total pressure.

b.

absolute humidity at a given temperature.

c.

both (a) and (b).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) and (b).
Q70.
Which of the following is an exothermic reaction ?

a.

Conversion of graphite to diamond

b.

Decomposition of water

c.

Dehydrogenation of ethane to ethylene

d.

none of these

Discuss
Answer: (d).none of these
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