Is Matter Around Us Pure Practice Questions

Class 9 · Science · 3229 free MCQs with instant results and detailed explanations.

3229
Total
977
Easy
1599
Medium
653
Hard

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Topics in Is Matter Around Us Pure

Physical and Chemical Changes 820
Separation Techniques 799
Mixtures 822
Solutions 788

Sample Questions from Is Matter Around Us Pure

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
Which of the following is NOT a characteristic of a mixture?
A. Components retain their properties
B. Can be separated physically
C. Uniform composition
D. Varies in composition
Show Answer & Explanation
Correct Answer: C
A mixture does not have a uniform composition; its components can vary widely.
Q2
Easy
What type of mixture is air considered?
A. Homogeneous
B. Heterogeneous
C. Colloidal
D. Suspension
Show Answer & Explanation
Correct Answer: A
Air is a homogeneous mixture because its composition is uniform throughout.
Q3
Easy
Which of the following is an example of a heterogeneous mixture?
A. Sugar solution
B. Salt water
C. Oil and water
D. Air
Show Answer & Explanation
Correct Answer: C
Oil and water form a heterogeneous mixture because they do not mix uniformly.
Q4
Medium
Which of the following is a homogeneous mixture?
A. Saltwater
B. Sand and salt
C. Oil and water
D. Cereal in milk
Show Answer & Explanation
Correct Answer: A
Saltwater is a homogeneous mixture because the salt dissolves completely in water, making it uniform throughout.
Q5
Medium
What type of mixture is formed when a solid is dispersed in a liquid but does not dissolve?
A. Solution
B. Colloid
C. Suspension
D. Emulsion
Show Answer & Explanation
Correct Answer: C
A suspension is a mixture where solid particles do not dissolve but remain suspended in the liquid.
Q6
Medium
What is the process called when a solid is separated from a liquid using a filter?
A. Evaporation
B. Filtration
C. Distillation
D. Decantation
Show Answer & Explanation
Correct Answer: B
Filtration is used to separate a solid from a liquid by passing the mixture through a filter.
Q7
Medium
Which method would you use to separate a mixture of sand and iron filings?
A. Separation funnel
B. Magnet
C. Filtration
D. Crystallization
Show Answer & Explanation
Correct Answer: B
A magnet can attract iron filings, effectively separating it from sand, which is non-magnetic.
Q8
Hard
Which of the following mixtures can be separated by the process of sublimation?
A. Salt and sand
B. Iodine and salt
C. Oil and water
D. Sugar and water
Show Answer & Explanation
Correct Answer: B
Iodine sublimates, turning directly from solid to gas without becoming liquid. This property allows it to be separated from a mixture with salt, which does not sublimate.
Q9
Hard
Which of the following is a homogeneous mixture?
A. Air
B. Sand
C. Oil and Water
D. Fruit Salad
Show Answer & Explanation
Correct Answer: A
Air is a homogeneous mixture of gases where the composition is uniform throughout.
Q10
Hard
What type of mixture is formed when sugar is dissolved in water?
A. Heterogeneous
B. Colloidal
C. Homogeneous
D. Suspension
Show Answer & Explanation
Correct Answer: C
A sugar-water solution is homogeneous as the sugar completely dissolves and creates a uniform mixture.

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Is Matter Around Us Pure — Class 9 Science Practice Questions Online

This page contains 3229 practice MCQs for the chapter Is Matter Around Us Pure in Class 9 Science. The questions are organized by difficulty — 977 easy, 1599 medium, 653 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.