Updated on June 10, 2023
by Tiwari Academy
by Tiwari Academy
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 2024-25. 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: 9 | Science |
| Chapter: 2 | Is Matter Around us pure? |
| Contents: | MCQ Online Test with Answers |
Class 9 Science Chapter 2 MCQ with Answers
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
Consider the following statements and choose the correct one(s):
[A]. A pure substance is one which is made up of only one kind of particles.
[B]. All the elements and compounds are pure substances.
[C]. A pure substance cannot be separated into other kinds of matter by any physical process.
[D]. All of the above
Q2
Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2 A + B → A2B. Which of the following statements concerning this reaction are incorrect?
[A]. The product A2B shows the properties of substances A and B. The product will always have a fixed composition, the product so formed cannot be classified as a compound.
[B]. The product will always have a fixed composition. The product so formed cannot be classified as a compound, the product so formed is an element.
[C]. The product A2B shows the properties of substances A and B. The product so formed cannot be classified as a compound. The product so formed is an element.
[D]. The product will always have a fixed composition. The product so formed cannot be classified as a compound, the product so formed is an element.
Q3
Which of the following are homogeneous in nature?
[A]. Ice, soil
[B]. Wood, air
[C]. Ice, air
[D]. Soil, air
Q4
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
[A]. The electric wires are made of copper and Aluminium metals because they are very good conductors of electricity.
[B]. Only one metal, mercury, is in liquid state at room temperature.
[C]. Metal gallium has a such a low melting point that it starts melting in hand by the heat of our body.
[D]. Sodium and potassium metals have high densities than iron.
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
Consider the following statements and choose the incorrect one:
[A]. The process of evaporation is used on a large scale to obtain common salt from seawater.
[B]. The substance like potash alum and potassium nitrate are also separated from their water solution by the process of evaporation.
[C]. we can separate the “colored component of ink” by the process of evaporation.
[D]. The use of process of condensation for separating a mixture is based on the fact that liquids vaporize easily whereas solid do not vaporize easily.
Q8
Read the following sentences carefully, and choose the correct one:
[A]. Distillation is a process of heating a liquid to form vapour, and then cooling the vapour to get back liquid.
[B]. Chromatography is a technique of separating two or more dissolved solids which are present in a solution in very small quantities.
[C]. Black ink is a mixture of several colored substance or dyes which can be separated by paper chromatography.
[D]. All the above
Q9
In a science quiz competition, Dhani are asked a question where she had to choose the statement which was/were incorrect?
[A]. Fractional distillation is the process of separating two or more miscible liquids by distillation.
[B]. A mixture of immiscible liquids is separated by using an apparatus called separating funnel.
[C]. A mixture of alcohol and water can be separated by fractional distillation.
[D]. Crystallization is not better technique than evaporation of dryness.
Q10
Read the following sentences carefully, and choose the correct one:
[A]. Argon is filled in electric bulbs.
[B]. The various gases of air are separated from one another by the fractional distillation of liquid air.
[C]. Fractional distillation separate the various liquids according to their boiling points, as the more volatile liquid distils over first and the less volatile liquid distils over later.
[D]. All the above.
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Last Edited: June 10, 2023
