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  • Is Matter Around Us Pure – Introduction
    • Is Matter Around Us Pure MCQ Class 9 (Easy to Moderate Level)
    • Class 9 Is Matter Around Us Pure MCQ (Moderate to High Level)
    • Is Matter Around Us Pure MCQ Class 9 with Answers
  • FAQs on Is Matter Around Us Pure MCQs
MCQs /
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CBSE Class 9 Is Matter Around Us Pure MCQs
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CBSE Class 9 Is Matter Around Us Pure MCQs

By Karan Singh Bisht

|

Updated on 21 Aug 2025, 15:00 IST

Is Matter Around Us Pure MCQ: Prepare for exams with the most important Is Matter Around Us Pure Class 9 MCQ questions. These well-structured Is Matter Around Us Pure MCQs cover all the key concepts from Chapter 2 of Class 9 Science. Practicing Matter Around Us Class 9 MCQ questions will help students quickly revise and strengthen their understanding of the topic.

Our set of Class 9 Is Matter Around Us Pure MCQ questions is designed according to the latest CBSE syllabus 2025-26, ensuring you are exam-ready. Each Is Matter Around Us Pure Class 9 MCQ with Answers is provided to guide students in checking their preparation level and improving accuracy.

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These Class 9 Science MCQs are not only useful for annual examinations but also helpful for competitive exams like CTET and KVS. By solving these, students can gain confidence and master the concepts of mixtures, solutions, and separation techniques effectively.

Is Matter Around Us Pure – Introduction

This chapter explores the concept of purity in matter, diving into what it means for something to be pure and the various forms it can take

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  • Definition of Pure Substances: Understand what constitutes a pure substance and how it differs from mixtures.
  • Types of Pure Substances: Learn about elements and compounds as examples of pure substances and how they are distinct from each other.
  • Characteristics of Pure Substances: Explore the physical and chemical properties that define pure substances, such as melting point, boiling point, density, and reactivity.
  • Methods of Purification: Discover various techniques used to purify substances, including distillation, filtration, chromatography, and crystallization.
  • Impurities and their Effects: Understand how impurities affect the properties and behavior of substances, and why purity is essential in many scientific and industrial processes.
  • Purity Analysis: Learn about methods for assessing the purity of substances, such as titration, spectroscopy, and analytical chemistry techniques.
  • Applications and Importance: Explore the significance of purity in industries like pharmaceuticals, electronics, food production, and environmental science.

Is Matter Around Us Pure MCQ Class 9 (Easy to Moderate Level)

1. Which of the following is a homogeneous mixture?

A) Saltwater

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B) Sand and iron filings

C) Oil and water

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D) Milk and water

Answer: A) Saltwater

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2. The process of separating a mixture of liquids with different boiling points is called?

A) Filtration

B) Evaporation

C) Distillation

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D) Condensation

Answer: C) Distillation

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3. Which of the following is a pure substance?

A) Air

B) Sugar solution

C) Salt solution

D) Gold

Answer: D) Gold

4. The process of conversion of a solid directly into gas without passing through the liquid state is called?

A) Melting

B) Evaporation

C) Sublimation

D) Condensation

Answer: C) Sublimation

5. A solution that cannot dissolve any more solute at a given temperature is said to be?

A) Unsaturated

B) Saturated

C) Supersaturated

D) Dilute

Answer: B) Saturated

6. Which method is used to separate a mixture of salt and water?

A) Filtration

B) Evaporation

C) Decantation

D) Sublimation

Answer: B) Evaporation

7. Which of the following is not a physical change?

A) Boiling of water

B) Rusting of iron

C) Freezing of water

D) Melting of wax

Answer: B) Rusting of iron

8. The smallest particle of an element that retains all the properties of that element is called a(n):

A) Atom

B) Molecule

C) Compound

D) Ion

Answer: A) Atom

Class 9 Is Matter Around Us Pure MCQ (Moderate to High Level)

1. Which of the following statements accurately describe pure substances?

I. Pure substances consist of only one type of particles.

II. Pure substances can be compounds or mixtures.

III. Pure substances maintain a consistent composition throughout.

IV. Pure substances are exemplified by all elements except nickel.

A) I and II

B) I and III

C) III and IV

D) II and III

Answer: B- I and III

2. Two substances, A and B, react to form a third substance, A2B, according to the following reaction: 2A + B → A2B

Which of the following statements concerning this reaction are incorrect?

I. The product A2B shows the properties of substances A and B.

II. The product will always have a fixed composition.

III. The product so formed cannot be classified as a compound.

IV. The product so formed is an element.

A) I and III

B) II and IV

C) III and IV

D) I and II

Answer: C) III and IV

3. Two chemical species X and Y combine together to form a product P which contains both X and Y, X + Y → P. X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y, and P are correct?

I. P is a compound.

II. X and Y are compounds.

III. X and Y are elements.

IV. P has a fixed composition.

A) I and III

B) II and IV

C) III and IV

D) I and II

Answer: B) II and IV

Is Matter Around Us Pure MCQ Class 9 with Answers

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

A) Saltwater

B) Air

C) Granite

D) Lemonade

Answer: C) Granite

2. Which of the following methods can be used to separate the components of a mixture of salt and water?

A) Filtration

B) Distillation

C) Evaporation

D) Chromatography

Answer: C) Evaporation

3. Which of the following statements about solutions is true?

A) Solutions are always homogeneous mixtures.

B) Solutions can be separated into their components by filtration.

C) The solute is present in larger quantity than the solvent in a solution.

D) Solutions cannot be formed with gases.

Answer: A) Solutions are always homogeneous mixtures.

4. Which of the following is a chemical change?

A) Freezing water to form ice

B) Cutting a piece of wood into smaller pieces

C) Digesting food in the stomach

D) Melting chocolate to form a liquid

Answer: C) Digesting food in the stomach

5. In a process where a liquid is rapidly rotated, denser particles settle at the bottom while lighter particles remain at the top. This principle finds application in:

(a) Centrifugation

(b) Fractional distillation

(c) Evaporation

(d) Tunneling

Answer: (a) Centrifugation

FAQs on Is Matter Around Us Pure MCQs

How do I quickly tell a mixture from a compound in MCQs?

  • Mixture: variable composition, components retain properties, can be separated by physical methods, no fixed melting/boiling point.
  • Compound: fixed ratio, new properties, needs chemical methods to separate, sharp melting/boiling point.

Which separation technique should I choose for common pairs?

  • Sand + water: filtration
  • Salt (dissolved) + water: evaporation/crystallization
  • Dye (ink) components: chromatography
  • Oil + water: separating funnel (immiscible liquids)
  • Alcohol + water: distillation (different b.p.)
  • Air components (N₂, O₂): fractional distillation of liquid air

How do I distinguish solution, suspension, and colloid fast?

  • Solution: particle size < 1 nm, no Tyndall effect, stable, homogeneous, no residue on filtration.
  • Colloid: 1–1000 nm, shows Tyndall effect, stable, passes ordinary filter but not ultrafilter.
  • Suspension: > 1000 nm, Tyndall effect may be seen, settles on standing, residue on filtration.

How do MCQs test purity using melting/boiling points?

  • Pure substances have sharp melting/boiling points.
  • Impurities: lower the melting point, raise the boiling point, and make ranges broader.
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