9th Grade Chemistry Quizzes , Questions & Answers

Recent Chemistry Quizzes

This assessment focuses on diffusion and molecular mass in gases. Key concepts include the definition of diffusion, the states of matter, and how molecular mass affects diffusion rates. Understanding these principles is essential...

Questions: 8 | Attempts: 12 | Last updated: Sep 14, 2026

Sample Question
What is diffusion?

The movement of particles from low to high concentration

The net movement of particles from high to low concentration until equilibrium is reached

The movement of particles in a solid only

The stopping of particle movement at equilibrium

Elements, Mixtures and Compounds

This assessment focuses on key concepts related to elements, mixtures, and compounds in chemistry. It evaluates your understanding of definitions, separation methods, and properties of substances. Engaging with this material is...

Questions: 15 | Attempts: 17 | Last updated: Aug 31, 2026

Sample Question
Which of the following best defines a 'substance' in chemistry?

Any material that can be physically separated

A pure element or pure compound with a definite composition

A mixture of two or more elements

Any material in a liquid or solid state

Separation and Purification Methods in Chemistry

This assessment focuses on separation and purification methods in chemistry, evaluating your understanding of techniques like crystallisation, filtration, and distillation. It covers key concepts such as the properties of...

Questions: 15 | Attempts: 13 | Last updated: Aug 31, 2026

Sample Question
Which separation method is used to recover a soluble solid from its solution?

Filtration

Distillation

Crystallisation by evaporation

Sublimation

Atomic Structure and Ionic Bonding

This assessment focuses on atomic structure and ionic bonding, evaluating your understanding of sub-atomic particles, their charges, and how ions form. It's essential for grasping fundamental chemistry concepts and their...

Questions: 30 | Attempts: 11 | Last updated: Aug 29, 2026

Sample Question
Which three sub-atomic particles are found in atoms?

Protons, neutrons, and electrons

Protons, photons, and electrons

Neutrons, positrons, and quarks

Electrons, muons, and protons

Ions, Ionic Bonding and Ionic Formulas

This assessment focuses on ions, ionic bonding, and ionic formulas. Key concepts include identifying ion charges, understanding cations and anions, and applying the swap-and-drop rule for compound formation. It's essential for...

Questions: 30 | Attempts: 10 | Last updated: Aug 29, 2026

Sample Question
An atom of aluminium loses 3 electrons. What ion is formed and what is its charge?

Al³⁻

Al³⁺

Al²⁺

Al⁻

Elements, Compounds, Mixtures & Lab Techniques

This assessment focuses on the concepts of elements, compounds, and mixtures, along with essential laboratory techniques. It evaluates your understanding of chemical definitions, separation methods, and properties of pure...

Questions: 15 | Attempts: 10 | Last updated: Aug 17, 2026

Sample Question
Which of the following best defines an element at the particle level?

Particles of two or more different atoms chemically bonded in fixed ratios

Particles consisting entirely of atoms with the same atomic number

A mixture of different atoms physically combined

Molecules formed by sharing electrons between different elements

Atomic History and Atomic Theory

This assessment covers key concepts in atomic history and theory. It evaluates your understanding of foundational figures like Dalton and Rutherford, as well as models such as Thomson's Plum Pudding and Bohr's atomic model. This...

Questions: 8 | Attempts: 12 | Last updated: Aug 15, 2026

Sample Question
Who is known as the 'Father of Atomic Theory' and proposed that all elements are composed of atoms?

Democritus

John Dalton

Ernest Rutherford

Niels Bohr

Consumer Chemistry Lab Safety and Equipment

This assessment focuses on essential laboratory safety and equipment knowledge. It evaluates understanding of proper lab attire, the use of various instruments, and safety practices. Mastering these concepts is crucial for anyone...

Questions: 30 | Attempts: 10 | Last updated: Jul 5, 2026

Sample Question
What is the primary purpose of wearing goggles in the laboratory?

To protect your eyes

To protect your clothes

To prevent chemical spills

To keep the workspace clean

Basic Chemistry Laws and Concepts

This assessment focuses on fundamental chemistry laws and concepts, including the Law of Conservation of Mass and Avogadro's Hypothesis. It evaluates your understanding of how mass and composition are maintained in chemical...

Questions: 30 | Attempts: 17 | Last updated: Jun 24, 2026

Sample Question
What does the Law of Conservation of Mass state?

Mass is created during a chemical reaction

In a chemical change, total mass remains conserved

Mass is destroyed after a chemical reaction

Mass changes depending on temperature

Atomic Structure, Bonding and Chemical Tests

This assessment focuses on atomic structure, bonding, and chemical tests. It evaluates your understanding of subatomic particles, isotopes, reactivity trends, and acid-base properties. By completing this assessment, learners can...

Questions: 11 | Attempts: 20 | Last updated: Jun 17, 2026

Sample Question
Which subatomic particle has a negligible mass and a charge of -1?

Proton

Neutron

Electron

Nucleus

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