Class 9 Science Chapter 2 MCQ (Multiple Choice Questions) of Is Matter Around us pure? All the questions are important for class unit tests and school’s terminal exams. MCQ Online tests take less time to revise any chapter. So, Student can revise the entire chapter 2 of class 9 science in less time. These MCQ questions contain all intext and exercises questions also in the form of objective questions.

Class: 9Science
Chapter: 2Is Matter Around us pure?
Contents:MCQ Online Test with Answers

Class 9 Science Chapter 2 MCQ with Answers for 2022-2023

Class 9 Science Chapter 2 MCQ Online tests with solution and explanation. There are about 70 questions in the form of objectives with four choices. These MCQ covers the entire chapter of grade 9 Science NCERT Chapter 2. For the preparation of unit tests or terminal exams, students may use these questions as revision.

Q1

Read the following sentences carefully, and choose the correct one:

[A]. The property which allows the materials to be hammered or beaten into thin sheets without breaking is called malleability.
[B]. The property which allows the metals to be drawn or stretched into thin wires without breaking is called ductility.
[C]. the property due to which non-metals break into pieces on hammering is called brittleness.
[D]. All of the above
Q2

Which of the following are chemical changes?

[A]. Decaying of wood, Burning of wood
[B]. Burning of wood, Sawing of wood
[C]. Sawing of wood, Hammering of a nail into a piece of wood
[D]. Decaying of wood, Hammering of a nail into a piece of wood
Q3

Which of the following are homogeneous in nature?

[A]. Ice, soil
[B]. Wood, air
[C]. Ice, air
[D]. Soil, air
Q4

On the basis of composition of matter, milk is considered to be :

[A]. A pure substance
[B]. An impure substance
[C]. An element
[D]. A compound
Q5

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. The solution made by dissolving solute in organic liquids are called non aqueous solutions.
[B]. The substance which is dissolved in a liquid to make a solution is called solvent.
[C]. The solute particles are also called “dispersed particles” and solvents are also known as “dispersion medium”.
[D]. None of the above.
Q6

Consider the following statements and choose the correct one:

[A]. Graphite is the allotropic form of carbon and it is a good conductor of electricity.
[B]. Bromine is a non-metal which exist as a liquid at room temperature.
[C]. Phosphorus is a non-metal other than carbon which shows allotropy.
[D]. All the above
Q7

Which of the following statement is or are incorrect?

[A]. A solution in which more quantity of solute can be dissolved without raising its temperature, is called an unsaturated solution.
[B]. A solution in which no more solute can be dissolved at that temperature is called a saturated solution.
[C]. If a saturated solution at a particular temperature is heated to a higher temperature, then it becomes unsaturated.
[D]. None of the above.
Q8

Nancy is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Nancy wants to take help from you:

[A]. The maximum amount of a solute which can be dissolved in hundred grams of a solvent at a specified temperature is known as the solubility of that solute in that solvent.
[B]. The solubility of solids in liquids usually increases on increasing the temperature and decreases on decreasing the temperature.
[C]. The solubility of gases in liquids increases on increasing the pressure and decreases on decreasing pressure.
[D]. All the above
Q9

Nitika is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. A mixture of common salt and water can be separated completely by the process of distillation.
[B]. Those liquids which mix together in all proportion and form a single layer are called miscible liquids.
[C]. Pure water or distilled water is made from tap water by the process of distillation.
[D]. All the above
Q10

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass.
[B]. In the form of heat, light etc. usually energy is either given out or absorbed during the preparation of a compound.
[C]. If the substance has a fixed melting point, boiling point etc. that means it is a mixture.
[D]. A mixture can be separated into its constituents by the physical process like filtration, evaporation, distillation etc.

What is a Solution?

A solution is a homogeneous mixture of two or more substances.

What are the main constituents of air?

The two main constituents of air are oxygen (21%) and nitrogen (78%).

What is Suspension?

A non-homogeneous systems in which solids are dispersed in liquids, are called suspensions. A suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium.

Write down two properties of Colloids?

1. Colloids are big enough to scatter a beam of light passing through it and make its path visible.
2. They do not settle down when left undisturbed, that is, a colloid is quite stable.

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