SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs (2026–27) – Assam Eduverse

Q: Are these MCQs helpful for board exam preparation?

Yes, these MCQs are designed for effective board exam preparation.

The SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs (2026–27) are prepared strictly according to the latest ASSEB syllabus and updated board exam pattern. These SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs include important objective questions, conceptual MCQs, and exam-focused practice sets designed to strengthen board exam preparation.

Prepared by subject experts of Assam Eduverse, these seba class 9 science chapter 2 mcqs cover important topics such as mixtures, solutions, colloids, suspensions, types of mixtures, separation techniques, physical and chemical changes, and pure substances. Practicing these is matter around us pure mcqs class 9 seba and assam board class 9 science objective questions improves conceptual clarity and accuracy in MCQ-based examinations.

Regular revision of these ASSEB Class 9 Science Important MCQs helps students master Chapter 2 concepts effectively and perform better in the 2026–27 board examination.

SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs – ASSEB 2026–27 Board Exam Practice

Q1. A pure substance consists of:
a) Two or more kinds of particles
b) Only one kind of particle
c) Different elements mixed together
d) Different compounds mixed together
Answer: b) Only one kind of particle

Q2. Which of the following is a homogeneous mixture?
a) Oil and water
b) Salt and iron filings
c) Sugar dissolved in water
d) Soil
Answer: c) Sugar dissolved in water

Q3. Which of the following is a heterogeneous mixture?
a) Air
b) Salt solution
c) Lemonade
d) Oil and water
Answer: d) Oil and water

Q4. The component of a solution present in larger amount is called:
a) Solute
b) Solvent
c) Residue
d) Filtrate
Answer: b) Solvent

Q5. The particles of a true solution are of size:
a) Greater than 100 nm
b) Between 1 nm and 100 nm
c) Smaller than 1 nm
d) Visible to naked eye
Answer: c) Smaller than 1 nm

Q6. Which of the following shows Tyndall effect?
a) Salt solution
b) Sugar solution
c) Copper sulphate solution
d) Milk
Answer: d) Milk

Q7. A suspension is:
a) Homogeneous and stable
b) Heterogeneous and stable
c) Homogeneous and unstable
d) Heterogeneous and unstable
Answer: d) Heterogeneous and unstable

Q8. The method used to separate cream from milk is:
a) Filtration
b) Evaporation
c) Centrifugation
d) Sublimation
Answer: c) Centrifugation

Q9. The process used to separate camphor from salt is:
a) Distillation
b) Sublimation
c) Chromatography
d) Filtration
Answer: b) Sublimation

Q10. Chromatography is used to separate:
a) Insoluble solids
b) Immiscible liquids
c) Colours in a dye
d) Heavy particles
Answer: c) Colours in a dye

Q11. The process used to separate two miscible liquids with sufficient difference in boiling points is:
a) Sublimation
b) Distillation
c) Filtration
d) Centrifugation
Answer: b) Distillation

Q12. Fractional distillation is used when the difference in boiling points is:
a) More than 100 K
b) Less than 25 K
c) Equal to 100 K
d) Very high
Answer: b) Less than 25 K

Q13. The process used to purify solid substances is:
a) Evaporation
b) Filtration
c) Crystallisation
d) Sublimation
Answer: c) Crystallisation

Q14. Which of the following is a physical change?
a) Rusting of iron
b) Burning of paper
c) Melting of butter
d) Cooking of food
Answer: c) Melting of butter

Q15. Which of the following is a chemical change?
a) Dissolving sugar in water
b) Freezing of water
c) Rusting of iron
d) Cutting of paper
Answer: c) Rusting of iron

Q16. An element is a substance which:
a) Can be separated by physical methods
b) Cannot be broken down by chemical reactions
c) Contains two or more elements
d) Is always solid
Answer: b) Cannot be broken down by chemical reactions

Q17. Mercury is:
a) A non-metal
b) A metalloid
c) A liquid metal
d) A gas
Answer: c) A liquid metal

Q18. A compound is formed when:
a) Substances mix physically
b) Elements combine chemically in fixed proportion
c) Two liquids mix
d) Solute dissolves in solvent
Answer: b) Elements combine chemically in fixed proportion

Q19. In a mixture, the composition is:
a) Fixed
b) Always equal
c) Variable
d) Chemically combined
Answer: c) Variable

Q20. In a compound, the properties are:
a) Same as constituent elements
b) Different from constituent elements
c) Always physical
d) Variable
Answer: b) Different from constituent elements

Q21. Assertion: A solution does not show Tyndall effect.
Reason: The particles of a solution are very small.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q22. Assertion: A suspension can be separated by filtration.
Reason: The particles of suspension are visible to naked eye.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q23. Assertion: A compound has fixed composition.
Reason: The elements are chemically combined in a fixed proportion.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q24. Assertion: Air is a heterogeneous mixture.
Reason: Air contains different gases.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: d) A is false but R is true

Q25. Assertion: Burning of candle is a chemical change.
Reason: A new substance is formed during burning.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q26. Assertion: Colloids are heterogeneous mixtures.
Reason: The particles of colloids are uniformly spread and cannot be seen by naked eye.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: b) Both A and R are true but R is not correct explanation of A

Q27. Assertion: Fractional distillation is used to separate components of air.
Reason: The gases in air have different boiling points.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q28. Assertion: Mixtures can be separated by physical methods.
Reason: In mixtures, substances are not chemically combined.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q29. Assertion: A saturated solution can dissolve more solute at the same temperature.
Reason: A saturated solution already contains maximum amount of solute at that temperature.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: d) A is false but R is true

Q30. Assertion: Elements cannot be separated into simpler substances by chemical reactions.
Reason: Elements are made up of only one kind of atom.
a) Both A and R are true and R is correct explanation of A
b) Both A and R are true but R is not correct explanation of A
c) A is true but R is false
d) A is false but R is true
Answer: a) Both A and R are true and R is correct explanation of A

Q31. Which of the following are homogeneous mixtures?
i) Air
ii) Salt solution
iii) Oil and water
iv) Vinegar
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q32. Which of the following are examples of colloids?
i) Milk
ii) Fog
iii) Smoke
iv) Salt solution
a) i and ii
b) i, ii and iii
c) ii and iv
d) i, ii, iii and iv
Answer: b) i, ii and iii

Q33. Which of the following methods are used to separate components of mixtures?
i) Filtration
ii) Distillation
iii) Crystallisation
iv) Chemical reaction
a) i and ii
b) i, ii and iii
c) ii and iv
d) i, ii, iii and iv
Answer: b) i, ii and iii

Q34. Which of the following are properties of a suspension?
i) Particles are visible
ii) Particles settle on standing
iii) Shows Tyndall effect
iv) Homogeneous mixture
a) i and ii
b) i, ii and iii
c) ii and iv
d) i, ii, iii and iv
Answer: b) i, ii and iii

Q35. Which of the following are physical changes?
i) Melting of ice
ii) Boiling of water
iii) Rusting of iron
iv) Cutting of wood
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q36. Which of the following are chemical changes?
i) Burning of wood
ii) Digestion of food
iii) Freezing of water
iv) Rusting of iron
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q37. Which of the following are metals?
i) Iron
ii) Copper
iii) Oxygen
iv) Sodium
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q38. Which of the following are non-metals?
i) Oxygen
ii) Bromine
iii) Silicon
iv) Hydrogen
a) i and ii
b) i, ii and iii
c) i, ii and iv
d) i, ii, iii and iv
Answer: c) i, ii and iv

Q39. Which of the following are compounds?
i) Water
ii) Carbon dioxide
iii) Air
iv) Calcium oxide
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q40. Which of the following are true for compounds?
i) Fixed composition
ii) Constituents chemically combined
iii) Can be separated by physical methods
iv) Properties different from elements
a) i and ii
b) i, ii and iv
c) ii and iii
d) i, ii, iii and iv
Answer: b) i, ii and iv

Q41. Match the following:

Column A Column B
a) Filtration 1) Separate cream from milk
b) Sublimation 2) Separate dye from ink
c) Centrifugation 3) Separate insoluble solid from liquid
d) Chromatography 4) Separate camphor from salt
Answer: a–3, b–4, c–1, d–2

Q42. Match the following:

Column A Column B
a) Solution 1) Heterogeneous and stable
b) Suspension 2) Homogeneous mixture
c) Colloid 3) Heterogeneous and unstable
d) Compound 4) Fixed composition
Answer: a–2, b–3, c–1, d–4

Q43. Match the following:

Column A Column B
a) Solute 1) Dissolves solute
b) Solvent 2) Present in lesser amount
c) Saturated solution 3) Can dissolve more solute
d) Unsaturated solution 4) Cannot dissolve more solute
Answer: a–2, b–1, c–4, d–3

Q44. Match the following:

Column A Column B
a) Physical change 1) Rusting
b) Chemical change 2) Melting of ice
c) Mixture 3) Cannot be broken chemically
d) Element 4) Variable composition
Answer: a–2, b–1, c–4, d–3

Q45. Match the following:

Column A Column B
a) Distillation 1) Immiscible liquids
b) Fractional distillation 2) Miscible liquids
c) Crystallisation 3) Small difference in boiling points
d) Separating funnel 4) Purification of solid
Answer: a–2, b–3, c–4, d–1

Q46. Match the following:

Column A Column B
a) Fog 1) Emulsion
b) Milk 2) Aerosol (liquid in gas)
c) Smoke 3) Aerosol (solid in gas)
d) Jelly 4) Gel
Answer: a–2, b–1, c–3, d–4

Q47. Match the following:

Column A Column B
a) Iron 1) Mixture
b) Sulphur 2) Element
c) Iron sulphide 3) Compound
d) Air 4) Non-metal
Answer: a–2, b–4, c–3, d–1

Q48. Match the following:

Column A Column B
a) Evaporation 1) Separate pure solid from solution
b) Crystallisation 2) Separate heavy particles
c) Centrifugation 3) Separate insoluble particles
d) Filtration 4) Separate volatile solvent
Answer: a–4, b–1, c–2, d–3

Q49. Match the following:

Column A Column B
a) Metal 1) Liquid metal
b) Non-metal 2) Poor conductor
c) Metalloid 3) Intermediate properties
d) Mercury 4) Good conductor
Answer: a–4, b–2, c–3, d–1

Q50. Match the following:

Column A Column B
a) Homogeneous mixture 1) Uniform composition
b) Heterogeneous mixture 2) Non-uniform composition
c) Compound 3) Fixed proportion
d) Colloid 4) Shows Tyndall effect
Answer: a–1, b–2, c–3, d–4

SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs (2026–27) Important Objective Questions

The SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs are designed strictly as per the latest ASSEB syllabus 2026–27. These SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs include conceptual objective questions, board-oriented MCQs, and exam-focused practice sets.

Students preparing for the board examination must regularly practice SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs. These seba class 9 science chapter 2 mcqs cover important concepts such as homogeneous and heterogeneous mixtures, solutions, colloids, suspensions, separation techniques like filtration and distillation, and differences between physical and chemical changes.

The is matter around us pure mcqs class 9 seba included here are prepared by subject experts to ensure complete alignment with the latest board exam pattern. These ASSEB class 9 science important MCQs help students understand key differences between pure substances and mixtures.

Regular revision of SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs along with assam board class 9 science objective questions improves accuracy, confidence, and overall scoring performance in the 2026–27 ASSEB board examination.

Frequently Asked Questions (FAQ)

1. Are these SEBA Class 9 Science Chapter 2 Is Matter Around Us Pure? MCQs based on the latest syllabus?

Yes, these MCQs follow the latest ASSEB syllabus for 2026–27.

2. Who prepared these MCQs?

These MCQs are prepared by subject experts of Assam Eduverse.

3. Which topics are covered in Chapter 2 MCQs?

Topics include mixtures, solutions, colloids, suspensions, separation techniques, and pure substances.

4. Are these MCQs helpful for board exam preparation?

Yes, these objective questions are designed for effective ASSEB board exam preparation.

5. Are separation techniques included in these MCQs?

Yes, important separation techniques like filtration, evaporation, and distillation are covered.

6. Can regular practice improve performance?

Yes, regular practice improves conceptual clarity and MCQ accuracy.

7. Are these useful for internal assessments?

Yes, these MCQs are helpful for both internal exams and final board examinations.

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