Chemistry Test on Matter, Substance and Mixtures

Matter, Substance and Mixtures Online Test

Complete all three sections below, then click "Submit for Marking" at the bottom to check your score.

 

Part A: Multiple Choice (10 Questions)

1. Which of the following is a pure substance?

• A) Air
• B) Salt water
• C) Copper
• D) Milk

2. A mixture can best be described as:

• A) Chemically combined substances
• B) A single element only
• C) Two or more substances physically combined
• D) A compound with fixed composition

3. Which process is commonly used to separate sand from water?

• A) Distillation
• B) Filtration
• C) Chromatography
• D) Evaporation

4. Which of the following is a homogeneous mixture?

• A) Soil
• B) Fruit salad
• C) Smoke
• D) Sugar solution

5. Which statement about compounds is correct?

• A) They can be separated by physical methods
• B) They contain only one type of atom
• C) Their components are chemically bonded
• D) They have variable composition

6. Which of the following is an example of a colloid?

• A) Salt solution
• B) Milk
• C) Oxygen gas
• D) Iron filings

7. The smallest particle of an element that retains its properties is called:

• A) Molecule
• B) Compound
• C) Atom
• D) Mixture

8. Which method is most suitable for separating alcohol from water?

• A) Magnetic separation
• B) Sieving
• C) Fractional distillation
• D) Decantation

9. Which property is characteristic of metals?

• A) Poor conductor of electricity
• B) Brittle texture
• C) Dull appearance
• D) Good thermal conductivity

10. A suspension differs from a solution because:

• A) It is always transparent
• B) Particles settle on standing
• C) It contains only liquids
• D) It cannot be separated

Part B: Short Answer (10 Questions)

Provide a one-word answer for each question.

11. A substance made up of only one kind of atom.

12. The process of converting liquid into vapor and then back into liquid to separate substances.

13. A mixture in which particles settle after standing.

14. The vertical columns in the periodic table are called:

15. The state of matter with definite shape and volume.

16. The instrument used to measure mass in a laboratory.

17. The process used to separate colored substances on paper.

18. Matter that has uniform composition throughout is called:

19. The tiny particles that make up all matter.

20. The change of a solid directly into gas is called:

```html

Part C: Matching (10 Questions)

Match each description with the correct term from the dropdown menu.

List of Terms:

A. Element

B. Compound

C. Evaporation

D. Alloy

E. Solution

F. Density

G. Sublimation

H. Chromatography

I. Filtration

J. Heterogeneous

21. A mixture with uneven composition.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

22. A pure substance made of two or more elements chemically combined.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

23. The process used to separate dissolved solids from liquids by heating.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

24. A homogeneous mixture of metals.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

25. A pure substance consisting of one type of atom.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

26. A uniform mixture of solute and solvent.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

27. Mass per unit volume.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

28. Separation method using movement on paper.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

29. Separation method using a filter paper.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

30. Change from solid directly to gas.

-- Choose Option -- A. Element B. Compound C. Evaporation D. Alloy E. Solution F. Density G. Sublimation H. Chromatography I. Filtration J. Heterogeneous

```

Test Marked Successfully!

0 / 30

0%

Grade: -

Question Performance Results: