Questions – Physical Properties - Extensive and Intensive
Multiple Choice Questions – Physical, Extensive, and Intensive Properties
Physical Properties
1. What is a physical property?
A) A property that changes the chemical composition
B) A trait that involves chemical reactions
C) A property observed without changing the substance’s identity
D) A type of radioactive decay
E) A result of a chemical transformation
2. Which of the following is a physical property?
A) Flammability
B) Rusting
C) Density
D) Reactivity with acid
E) Combustion
3. Color, texture, and state of matter are examples of:
A) Chemical properties
B) Extensive properties
C) Physical properties
D) Mixture types
E) Molecular structures
4. The boiling point of a substance is:
A) A chemical change
B) A physical property
C) An extensive property
D) Irrelevant for identification
E) Caused by decomposition
5. Which of the following is not a physical property?
A) Mass
B) Volume
C) Melting point
D) Reactivity
E) Density
6. Which of these is a physical change, not a chemical change?
A) Iron rusting
B) Wood burning
C) Water boiling
D) Milk souring
E) Baking a cake
7. Physical properties can be:
A) Observed only through chemical reactions
B) Only intensive
C) Either extensive or intensive
D) Only measured in gases
E) Seen only in pure substances
Extensive Properties
8. What is an extensive property?
A) A property that depends on the type of substance
B) A property that depends on the amount of substance
C) A chemical reaction indicator
D) A radioactive measurement
E) A type of bonding
9. Which of the following is an extensive property?
A) Boiling point
B) Color
C) Mass
D) Density
E) Odor
10. Which of the following is not an extensive property?
A) Volume
B) Mass
C) Energy
D) Shape
E) Density
11. If the amount of matter increases, which property also increases?
A) Density
B) Temperature
C) Mass
D) Boiling point
E) Reactivity
12. Extensive properties are useful for:
A) Identifying chemical bonds
B) Determining physical state
C) Describing the quantity of material
D) Measuring flammability
E) Observing light emission
13. Which of the following is not affected by the amount of substance?
A) Mass
B) Volume
C) Length
D) Density
E) Weight
14. An example of an extensive property is:
A) Color
B) Hardness
C) Heat capacity
D) Boiling point
E) Solubility
15. Volume is considered:
A) A chemical property
B) An extensive physical property
C) An intensive chemical property
D) An intensive physical property
E) Not a physical property
Intensive Properties
16. What is an intensive property?
A) A property that depends on the amount of matter
B) A property related to the mass of a substance
C) A property that does not depend on the amount of matter
D) A mixture ratio
E) A structural property only in solids
17. Which of the following is an intensive property?
A) Volume
B) Mass
C) Density
D) Weight
E) Area
18. Which of these is not an intensive property?
A) Boiling point
B) Melting point
C) Density
D) Mass
E) Color
19. Density is considered intensive because:
A) It depends on the object's size
B) It changes with volume
C) It remains constant regardless of sample size
D) It only applies to gases
E) It decreases with temperature
20. If two samples of the same substance have different masses but the same density, this indicates:
A) Density is extensive
B) They are different substances
C) Density is intensive
D) Density depends on size
E) The samples are impure
21. Which pair are both intensive properties?
A) Mass and volume
B) Color and density
C) Volume and area
D) Weight and mass
E) Volume and temperature
22. The boiling point of water is:
A) An intensive property
B) A variable property
C) An extensive property
D) A chemical change
E) Unmeasurable
23. Color is considered:
A) A chemical change
B) An extensive property
C) An intensive property
D) A variable mass trait
E) A reactive quality
24. Which of the following is always the same for a pure substance, regardless of amount?
A) Volume
B) Mass
C) Density
D) Heat content
E) Surface area
25. Which is not an example of an intensive property?
A) Density
B) Boiling point
C) Hardness
D) Volume
E) Refractive index
Mixed Concept Questions
26. When salt dissolves in water without changing composition, it demonstrates a:
A) Chemical change
B) Physical change
C) Formation of new substance
D) Radioactive decay
E) Gas evolution
27. Which of the following helps identify a substance regardless of amount?
A) Mass
B) Weight
C) Color
D) Density
E) Energy
28. Which combination correctly matches property type to example?
A) Intensive – mass
B) Extensive – density
C) Intensive – boiling point
D) Extensive – color
E) Intensive – volume
29. A physical property that varies with quantity is:
A) Odor
B) Mass
C) Melting point
D) Luster
E) Conductivity
30. If two blocks of iron have different sizes but identical melting points, this means:
A) Melting point is extensive
B) Melting point is intensive
C) The blocks are not the same metal
D) One block is impure
E) Iron is a compound
Answer Key with Explanations
1. C) Observed without changing the substance’s identity
2. C) Density is a measurable physical trait
3. C) All are physical properties
4. B) Boiling point doesn’t change substance identity
5. D) Reactivity is a chemical property
6. C) Boiling is physical (no new substance)
7. C) They can be either intensive or extensive
8. B) Depends on the amount of matter
9. C) Mass varies with quantity
10. E) Density does not depend on amount
11. C) Mass increases with more matter
12. C) Extensive properties describe “how much”
13. D) Density remains constant for same substance
14. C) Heat capacity depends on size
15. B) Volume is an extensive physical property
16. C) Independent of amount
17. C) Density stays constant for a substance
18. D) Mass is extensive
19. C) It stays the same regardless of size
20. C) Density is intensive
21. B) Both don’t depend on amount
22. A) Always the same for water at same pressure
23. C) Color doesn’t change with quantity
24. C) Density is constant for a pure substance
25. D) Volume varies with quantity
26. B) Dissolving is a physical change
27. D) Density helps identify substances
28. C) Boiling point is intensive
29. B) Mass varies with quantity
30. B) Melting point is an intensive property
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