Matter and Its Properties: Interactive Learning Quizzes for Year 12 Chemistry

Question 1

Which property of matter describes its mass per unit volume?

Accepted Answer

Density

Answer

Flammability

Answer

Solubility

Answer

Reactivity

Question 2

A compound is a substance that:

Accepted Answer

Has a definite composition of elements

Answer

Can be separated by physical means

Answer

Exists as ions in water

Answer

Is always a solid at room temperature

Question 3

Which property of matter describes its ability to undergo a chemical change?

Accepted Answer

Reactivity

Answer

Melting point

Answer

Boiling point

Answer

Density

Question 4

A homogeneous mixture is one in which:

Accepted Answer

Components are evenly distributed throughout

Answer

Different components can be distinguished

Answer

Components can be separated by filtration

Answer

Components react chemically to form a new substance

Question 5

Which factor has the greatest influence on the rate of diffusion of a gas?

Accepted Answer

Temperature

Answer

Pressure

Answer

Concentration

Answer

Surface area

Question 6

Which of the following observations is qualitative?

Accepted Answer

The liquid has a green color.

Answer

The mass of the solid is 10 grams.

Answer

The volume of the gas is 2 liters.

Answer

The temperature of the solution is 25°C.

Question 7

Which element is an inert noble gas?

Accepted Answer

Helium

Answer

Hydrogen

Answer

Carbon

Answer

Oxygen

Question 8

Which element is classified as a metalloid?

Accepted Answer

Silicon

Answer

Sodium

Answer

Chlorine

Answer

Aluminium

Question 9

Which separation technique is used to separate a solid from a liquid?

Accepted Answer

Filtration

Answer

Distillation

Answer

Chromatography

Answer

Sublimation

Question 10

The particles in a solid are arranged in a:

Accepted Answer

Regular, close-packed pattern

Answer

Random, non-uniform pattern

Answer

Close-packed, but with irregular arrangement

Answer

Loose, non-uniform pattern

Question 11

The law of conservation of mass states that:

Accepted Answer

Mass cannot be created or destroyed

Answer

Energy cannot be created or destroyed

Answer

Momentum is conserved

Answer

Charge is conserved

Question 12

A mixture is a combination of two or more pure substances that:

Accepted Answer

Retain their individual properties

Answer

Are chemically combined

Answer

Form a new substance

Answer

Cannot be separated by physical means

Question 13

Which of the following techniques can be used to separate a mixture of sand and salt?

Accepted Answer

Filtration

Answer

Distillation

Answer

Sublimation

Answer

Chromatography

Question 14

The atomic mass of an element is the:

Accepted Answer

Average mass of all the isotopes of the element, weighted by their abundance

Answer

Mass of the most common isotope of the element

Answer

Mass of the nucleus of the element

Answer

Number of protons in the nucleus of the element

Question 15

The pH of a solution is a measure of its:

Accepted Answer

Acidity or alkalinity

Answer

Conductivity

Answer

Oxidation potential

Answer

Density

Question 16

Which state of matter has the strongest intermolecular forces holding its particles together?

Accepted Answer

Solid

Answer

Gas

Answer

Liquid

Answer

Plasma

Question 17

Which of the following accurately describes the composition of salt water?

Accepted Answer

A mixture of two or more substances that are not chemically combined

Answer

A pure substance with a fixed composition

Answer

A compound formed by the chemical combination of two or more elements

Question 18

Which of the following is a chemical property of matter?

Accepted Answer

Reactivity with oxygen

Answer

Boiling point

Answer

Color

Answer

Solubility in water

Question 19

Which of the following is a heterogeneous mixture?

Accepted Answer

Concrete

Answer

Air

Answer

Sugar solution

Answer

Brass

Question 20

Which of the following is a method of separating a mixture of solids based on particle size?

Accepted Answer

Filtration

Answer

Evaporation

Answer

Crystallisation

Answer

Sublimation

Question 21

Which of the following is a state of matter with a definite volume and shape?

Accepted Answer

Solid

Answer

Gas

Answer

Liquid

Answer

Plasma

Question 22

Which of the following is a state of matter with no definite volume or shape?

Accepted Answer

Gas

Answer

Liquid

Answer

Solid

Answer

Plasma

Question 23

Which property describes the density of a substance?

Accepted Answer

Physical

Answer

Chemical

Answer

Biological

Answer

Environmental

Question 24

Covalent bonding involves the:

Accepted Answer

Sharing of electrons between atoms

Answer

Transfer of electrons from one atom to another

Answer

Interaction of charged ions

Answer

Formation of metallic bonds

Question 25

Which of the following processes involves a change from a liquid to a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Deposition

Answer

Sublimation

Question 26

Which technique is commonly used to separate a mixture of liquids based on their different boiling points?

Accepted Answer

Distillation

Answer

Crystallization

Answer

Chromatography

Answer

Filtration

Question 27

Which of the following substances is a weak electrolyte?

Accepted Answer

Acetic acid

Answer

Potassium chloride

Answer

Sodium hydroxide

Answer

Hydrochloric acid

Question 28

What is the approximate pH of a 0.01 M solution of hydrochloric acid (HCl)?

Accepted Answer

1

Answer

4

Answer

7

Answer

10

Question 29

Which of the following is considered a pure substance?

Accepted Answer

Gold

Answer

Salt water

Answer

Air

Answer

Iron ore

Question 30

Which of the following is a homogeneous mixture?

Accepted Answer

Salt water

Answer

Salad

Answer

Oil and water

Answer

Sand and water

Question 31

Name the most abundant element in the universe.

Accepted Answer

Hydrogen

Answer

Helium

Answer

Carbon

Answer

Oxygen

Question 32

Which element exhibits radioactive properties?

Accepted Answer

Uranium

Answer

Sodium

Answer

Potassium

Answer

Calcium

Question 33

Which option is an example of a homogeneous mixture?

Accepted Answer

Air

Answer

Oil combined with water

Answer

Sand combined with water

Answer

Granite rock

Question 34

Which type of intermolecular force is considered the weakest?

Accepted Answer

London dispersion forces

Answer

Hydrogen bonding

Answer

Dipole-dipole interactions

Answer

Ionic bonding

Question 35

Identify the strong electrolyte from the following options:

Accepted Answer

Sodium chloride (NaCl)

Answer

Acetic acid (CH3COOH)

Answer

Sucrose (C12H22O11)

Answer

Water (H2O)

Question 36

Determine the pH of a solution with a hydrogen ion concentration of 1 x 10^-7 M:

Accepted Answer

7

Answer

1

Answer

10

Answer

14

Question 37

Which of the following is an example of a chemical change?

Accepted Answer

Rust forming on iron

Answer

Ice turning into liquid water

Answer

Water turning into water vapor

Answer

Salt dissolving in water

Question 38

Which of the following is a characteristic of physical properties?

Accepted Answer

Can be observed or measured without changing the composition of the substance

Answer

Can only be observed at high temperatures

Answer

Are dependent on the amount of substance present

Answer

Involve a change in the chemical composition of the substance

Question 39

Which state of matter has a definite volume and a definite shape?

Accepted Answer

Solid

Answer

Plasma

Answer

Liquid

Answer

Gas

Question 40

Which of the following is a heterogeneous mixture?

Accepted Answer

Sand in water

Answer

Salt water

Answer

Vinegar

Answer

Air

Question 41

Which technique is used to separate a mixture of two liquids with different boiling points?

Accepted Answer

Distillation

Answer

Chromatography

Answer

Filtration

Answer

Extraction

Question 42

What is the base unit of temperature in the International System of Units (SI)?

Accepted Answer

Kelvin

Answer

Celsius

Answer

Rankine

Answer

Fahrenheit

Question 43

Which of the following is a subatomic particle with a negative charge?

Accepted Answer

Electron

Answer

Quark

Answer

Neutron

Answer

Proton

Question 44

What is the key difference between a homogeneous and a heterogeneous mixture?

Accepted Answer

Homogeneous mixtures have a uniform composition throughout, while heterogeneous mixtures have a non-uniform composition.

Answer

Homogeneous mixtures are always liquids, while heterogeneous mixtures are always solids.

Question 45

Which of the following is a physical property of matter?

Accepted Answer

Density

Answer

Solubility

Answer

Flammability

Answer

Reactivity

Question 46

Which state of matter has a definite volume but no definite shape?

Accepted Answer

Liquid

Answer

Gas

Answer

Solid

Answer

Plasma

Question 47

Which of the following is a homogeneous mixture?

Accepted Answer

Salt water

Answer

Granite

Answer

Sand in water

Answer

Oil and water

Question 48

Which separation technique is used to separate a solid from a liquid?

Accepted Answer

Filtration

Answer

Sublimation

Answer

Distillation

Answer

Chromatography

Question 49

Which of the following is a compound?

Accepted Answer

Sodium chloride

Answer

Oxygen

Answer

Iron

Question 50

Which of the following is a characteristic of a metal?

Accepted Answer

High electrical conductivity

Answer

Transparency

Answer

Low density

Question 51

Which of the following is a unit of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Pascal

Answer

Watt

Question 52

Which of the following is a scalar quantity?

Accepted Answer

Temperature

Answer

Velocity

Answer

Force

Answer

Acceleration

Question 53

Which of the following is a thermodynamic process in which the temperature of a system remains constant?

Accepted Answer

Isothermal

Answer

Isochoric

Answer

Adiabatic