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 17 of 42

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Q161.
Unit of power is

a.

joule

b.

watt

c.

joule/Second

d.

both (b) & (c)

Discuss
Answer: (d).both (b) & (c)
Q162.
Avogadro's number is equal to

a.

6.023 x 10²³ molecules/kg.mole.

b.

6.023 x 10²³ molecules/gm.mole.

c.

6.023 x 10¹⁶ molecules/kg.mole.

d.

6.023 x 10²⁶ molecules/gm.mole.

Discuss
Answer: (b).6.023 x 10²³ molecules/gm.mole.
Q163.
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.

a.

less than

b.

more than

c.

equal to

d.

either more or less; depends on the solvent

Discuss
Answer: (a).less than
Q164.
The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm.

a.

0.065

b.

0.65

c.

6.5

d.

65

Discuss
Answer: (b).0.65
Q165.
With rise in temperature, the solubility of ammonia in water at a fixed pressure

a.

increases

b.

decreases

c.

remains unchanged

d.

increases exponentially

Discuss
Answer: (b).decreases
Q166.
If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times.

a.

10

b.

20

c.

70

d.

100

Discuss
Answer: (a).10
Q167.
The temperature at which a real gas obeys Boyle's law is termed as the

a.

triple point

b.

Boyle's temperature

c.

eutectic point

d.

inversion temperature

Discuss
Answer: (b).Boyle's temperature
Q168.
Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the

a.

vapor follows the ideal gas law.

b.

molal latent heat of vaporisation is constant within the limited temperature range.

c.

volume in the liquid state is negligible compared with that in the vapor state.

d.

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

Discuss
Answer: (d).all (a), (b) & (c).
Q169.
Heat of neutralisation of HCl and NaOH is - 57.46 kJ/Kg mole. The heat of ionisation of water will be __________ kJ/Kg mole.

a.

57.46

b.

-57.46

c.

114.92

d.

-28.73

Discuss
Answer: (a).57.46
Q170.
The heat evolved in the combustion of benzene is represented by the equation:

C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole

The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole.

a.

+816.15

b.

+1632.3

c.

-1632.3

d.

-2448.45

Discuss
Answer: (c).-1632.3
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