IB Grade 9 Chemistry by Pavan | Practice Test to Test Your Knowledge
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  3. IB Grade 9 Chemistry
IB Grade 9 Chemistry

IB Grade 9 Chemistry

Complete mock test including Organic Chemistry, Chemical Bonding, Electrochemistry, and Chemical Kinetics. Includes multiple choice questions, short answers, and long descriptive questions.

2025-07-21
Pavan Pavan
IB Chemistry Class 9 Grade 9

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

What is the definition of matter?

A
Anything that possesses mass and occupies space
B
Anything that has volume and density
C
Anything that is made of molecules
D
Anything that can be seen or touched

Which of the following best describes the Kinetic Particle Theory (KPT)?

A
Matter is made up of tiny particles that are in constant motion.
B
Matter is made up of large particles that do not move.
C
Particles in matter are stationary and do not interact.
D
The state of matter is independent of particle motion.

In which state of matter are particles most tightly packed?

A
Gas
B
Liquid
C
Solid
D
Plasma

Which of the following is a characteristic of liquids?

A
Definite shape and volume
B
No definite shape, but definite volume
C
No definite shape or volume
D
Definite shape, but no definite volume

What happens to the particles of a substance as its temperature increases?

A
The particles move slower.
B
The particles move faster.
C
The particles remain stationary.
D
The particles lose kinetic energy.

Which of the following changes is an example of sublimation?

A
Ice melting into water
B
Water boiling into steam
C
Dry ice turning into gas
D
Water freezing into ice

At what point does a liquid change into a gas?

A
Melting point
B
Boiling point
C
Freezing point
D
Sublimation point

What is the effect of increasing pressure on a gas?

A
The gas particles move faster.
B
The gas particles slow down.
C
The volume of the gas increases.
D
The gas particles are forced closer together.

What is a characteristic of gases?

A
They have a fixed shape.
B
They have a fixed volume.
C
They can be easily compressed.
D
They have high density.

Which of the following methods is used to separate components of a mixture based on their boiling points?

A
Filtration
B
Evaporation
C
Distillation
D
Chromatography

Which of the following substances is a mixture?

A
Saltwater
B
Water
C
Carbon dioxide
D
Oxygen

What is the difference between an element and a compound?

A
An element can be separated into simpler substances; a compound cannot.
B
An element consists of only one type of atom, while a compound consists of two or more elements chemically bonded.
C
A compound is a pure substance, while an element is not.
D
An element is a mixture of substances, while a compound is a pure substance.

Which of the following is an example of a heterogeneous mixture?

A
Saltwater
B
Sugar solution
C
Air
D
Oil and water

What does the term 'density' refer to?

A
The mass of a substance per unit volume.
B
The amount of space a substance occupies.
C
The amount of energy in a substance.
D
The temperature of a substance.

What happens when a substance undergoes sublimation?

A
It changes from solid to liquid.
B
It changes from liquid to gas.
C
It changes from gas to solid.
D
It changes from solid to gas.

Which of the following methods is used to separate a solid from a liquid in a mixture?

A
Filtration
B
Evaporation
C
Distillation
D
Magnetism

What happens to the volume of gas when the temperature is increased at constant pressure?

A
Volume decreases
B
Volume increases
C
Volume remains the same
D
Volume fluctuates unpredictably

Which of the following substances is an example of a compound?

A
Oxygen
B
Carbon dioxide
C
Air
D
Hydrogen

Which of the following is a physical change?

A
Burning of wood
B
Melting of ice
C
Rusting of iron
D
Cooking of food

Which of the following best describes a homogeneous mixture?

A
A mixture with visibly distinct components.
B
A mixture that has uniform composition throughout.
C
A mixture of solids only.
D
A mixture that settles into layers.

What is the primary purpose of distillation?

A
To separate liquids based on their boiling points.
B
To separate a solid from a liquid.
C
To purify a solid.
D
To separate gases based on their solubility.

Which of the following substances can undergo sublimation?

A
Ice
B
Carbon dioxide
C
Water
D
Salt

What is the formula used to calculate the density of an object?

A
Density = Mass x Volume
B
Density = Mass / Volume
C
Density = Volume / Mass
D
Density = Volume x Time

Which of the following methods can be used to separate a mixture of liquids?

A
Filtration
B
Evaporation
C
Chromatography
D
Magnetism

Which of the following is a chemical change?

A
Dissolving sugar in water
B
Boiling water
C
Burning wood
D
Melting wax

What is chromatography used to separate?

A
Solids from liquids
B
Liquids with different boiling points
C
Components of a mixture based on solubility
D
Gases based on density

Which of the following is NOT a property of gases?

A
They have no definite shape.
B
They can be compressed.
C
They have a high density.
D
They expand to fill any container.

What method can be used to separate a magnetic substance from a non-magnetic substance?

A
Filtration
B
Decantation
C
Magnetism
D
Evaporation

What is the boiling point of water in Celsius?

A
0°C
B
50°C
C
100°C
D
150°C

Which of the following is a correct example of deposition?

A
Water freezing into ice
B
Water evaporating into vapor
C
Ice turning into water
D
Water vapor turning into ice