Stoichiometry Quiz Questions and Answers

Questions : 12 | Total Attempts: 280 | Recent Updated: 16-Jan-2022
Am I a Dominant or Submissive Personality Quiz
Stoichiometry is the quantitative relation between the number of moles (and therefore mass) of various products and reactants in a chemical reaction. Chemical reactions must be balanced, or in other words, must have the same number of various atoms in the products as in the reactants. Stoichiometry is the measure of the quantitative relationship between the products and reactants of a given chemical reaction in terms of their relative ratios of mass or volume. Stoichiometry is the fundamental mathematical principle used to describe the law of conservation of mass, which states that matter cannot be created nor destroyed, but only converted from one form to another. Let's know more about Stoichiometry.

Questions Excerpt


1. The formula of a metal oxide is Z₂O₃. If 6 mg of hydrogen is required for complete reduction of 0.1596gm metal oxide, then the at. weight of metal is-

A. 227.9

B. 159.6

C. 79.8

D. 55.8

2. The no. of moles of OHˉin 0.3l of 0.005M Ba(OH)₂ is-

A. 0.075

B. 0.005

C. 0.045

D. 0.003

3. The volume of CO₂ at STP obtained by heating 1gm of CaCO₃ will be...

A. 1litre

B. 22.4 litre

C. 0.224 litre

D. 11.2 litre

4. The vapor density of a gas is 11.2 the volume occupied by 11.2gm of this gas at NTP is-

A. 1 litre

B. 11.2 litre

C. 22.4 litre

D. 20 litre

5. The significant figure in 5.23×10⁵ are-

A. 8

B. 3

C. 4

D. Infinite

6. From the following the no. of atoms is greater in...

A. 4g hydrogen

B. 71g chlorine

C. 48g magnesium

D. 127g iodine

7. One mole of CO₂ contains-

A. 6.02×10²³ atoms of C

B. 6.02×10²³ atoms of O

C. 18.1×10²³ atoms of CO₂

D. 3g molecules of CO₂

8. At STP conditions the no. of moles of oxygen in a liter of air which has 21% oxygen by volume is-

A. 2.10 mole

B. 0.0093

C. 0.186mole

D. 0.21 mole

9. How much amount of zinc is required to react with dilute H₂SO₄ for obtaining 43ml vapor. Then the vapor density of the substance will be...

A. 0.65gm

B. 6.5gm

C. 65gm

D. 0.065gm

10. Which has maximum molecules...

A. 7gm N₂

B. 2gm H₂

C. 16gm NO₂

D. 16gm O₂

11. The mole ratio of H₂ and O₂ gas is 8:1. What will be the ratio of wt?

A. 1:1

B. 2:1

C. 4:1

D. 1:2

12. The volume of CO₂ at NTP obtained by the complete decomposition of 9.85gm. BaCO₃ is-(At. wt of Ba=137)...

A. 22.4 litre

B. 1.12 litre

C. 0.84 litre

D. 0.56 litre

 

Drop your comment here...


Related Quizzes

Class 11 Chemistry MCQs Quiz with Answer

Class 11 Chemistry MCQs Quiz with Answer

Chemistry is one of the important branches of science that deals with the identification, structure, and reactions of the elements and compounds that make up our world. In 11th-grade chemistry, you have to learn about the basic principles of chemistr
Redox Reactions Quiz Questions with Answers

Redox Reactions Quiz Questions with Answers

Redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal transfer of electrons between chemical species, most often with one species undergoing oxidation while
Chemical Bonds in Compounds Quiz

Chemical Bonds in Compounds Quiz

The force that holds different atoms in a molecule is called a chemical bond. A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds. In general, strong chemical bonding is associate
Periodic Properties Quiz: How Much You Know About Periodic Properties?

Periodic Properties Quiz: How Much You Know About Periodic Properties?

The periodic table arranges the elements by periodic properties, which are recurring trends in physical and chemical characteristics. These trends explain the periodicity observed in the elemental properties of atomic radius, ionization energy, elect
Anatomy of Flowering Plants Quiz: How Much You Know About Anatomy of Flowering Plants?

Anatomy of Flowering Plants Quiz: How Much You Know About Anatomy of Flowering Plants?

Anatomy, a field in the biological sciences concerned with the identification and description of the body structures of living things. Plant anatomy is the study of the shape, structure, and size of plants. As a part of botany, plant anatomy focuses
Morphology of Flowering Plants Quiz: How Much You Know About Morphology of Flowering Plants?

Morphology of Flowering Plants Quiz: How Much You Know About Morphology of Flowering Plants?

Morphology is the study of the size, shape, and structure of plants and microorganisms and of the relationships of their parts. The term refers to the general aspects of biological form and arrangement of the parts of a plant. The features that disti
Gaseous State Quiz: How Much You Know About Gaseous State?

Gaseous State Quiz: How Much You Know About Gaseous State?

The gaseous state features very small attractive forces between the gas particles, which are separated from each other by relatively greater distances when compared to liquids and solids. It is important to note that substances that exist in the gase
Atomic Structure Quiz: How Much You Know About Atomic Structure?

Atomic Structure Quiz: How Much You Know About Atomic Structure?

The structure of an atom is an atom consists of a nucleus and a number of electrons present around the nucleus. All the three charges have a mass value and the mass of protons and neutrons together gives the mass of the nucleus i.e. the atomic mass o