Atoms And Molecules Exam Preparation- Mock Test

A vibrant illustration of atoms and molecules with a colorful background showing chemical structures and formulas.

Atoms and Molecules Exam Prep Quiz

Prepare yourself for success in chemistry with our engaging Atoms and Molecules Exam Preparation Mock Test! This quiz is designed to help you review essential concepts in a fun and interactive way.

In this quiz, you will:

Test your knowledge on atomic theory and molecular structures.
Understand the details about atomicity, valency, and formulas.
Challenge yourself with multiple-choice questions and true/false statements.

10 Questions2 MinutesCreated by ExploringAtom52

If the atomicity of a molecule is more than two, then it is called ____________________.

Formula unit mass is calculated for those substances whose constituent particles are __________________.

What is the atomic number of nitrogen?

Which of the following is a molecule?

The simplest ratio of number of atoms of nitrogen to the number atoms of hydrogen in ammonia is,

3:2

1:3

3:1

1:2

Mass of __________________mole of a substance is called molar mass.

One gram

Two

6.22 x 10 ^23

One

Atomicity of sulphur molecule is ,_____________

Valency of sodium and carbonate ions present in Na₂CO₃ are __________and _______________respectively.

+1 , -2

-1, +2

+1 ,-1

None of the above

State true or false. Losing electrons from the second last shell leads to elements having variable valency.

True

False

State true or false. Common name for magnesium sulphate is quick lime.

True

False

Atoms And Molecules Exam Preparation- Mock Test

Atoms and Molecules Exam Prep Quiz

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