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 2025-26. 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
A mixture of sulphur and carbon disulphide is:
[A]. Heterogeneous and shows Tyndall effect
[B]. Homogeneous and shows Tyndall effect
[C]. Heterogeneous and does not show Tyndall effect
[D]. Homogeneous and does not show Tyndall effect
Q3
Vibhu appeared in class test but he confused to know the incorrect statement. Would you help him to know that?
[A]. Aluminium foil are used for packing food items like biscuits, chocolates, medicine, cigarettes, etc.
[B]. Ductility is another important characteristic property of metals.
[C]. Malleability is an important characteristic property of metals.
[D]. The poorest conductor of heat among the metals is gold and silver.
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
Which of the following statements are true for pure substances?
[A]. Pure substances contain only one kind of particles, pure substances may be compounds or mixtures.
[B]. Pure substances contain only one kind of particles; pure substances have the same composition throughout.
[C]. Pure substances have the same composition throughout, pure substances can be exemplified by all elements other than nickel.
[D]. Pure substances may be compounds or mixtures, pure substances have the same composition throughout.
Q6
Read the following sentences carefully, and choose the incorrect one:
[A]. In a colloidal solution or colloid the particles are big enough to scatter light.
[B]. The scattering of light by colloidal particles is known as “Tyndall effect”.
[C]. Colloids are heterogeneous in nature, though they appear to be homogeneous.
[D]. The particles of most of the colloids can be seen with a microscope.
Q7
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
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
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.
Q10
Consider the following statements and choose the correct one:
[A]. The separation of two immiscible liquids by separating funnel depends on the difference in their densities.
[B]. A mixture of petrol and water can also be separated by using a separating funnel.
[C]. A mixture of mercury, water and benzene can be separated by separating funnel.
[D]. All the above.
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Last Edited: June 10, 2023
