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
The rusting of an iron object is called:
[A]. Corrosion and it is a physical as well as a chemical change
[B]. Dissolution and it is a physical change
[C]. Corrosion and it is a chemical change
[D]. Dissolution and it is a chemical change
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
Which of the following statement is or are correct?
[A]. Metals can be beaten into thin sheets with the hammer without breaking.
[B]. Metals can be drawn or stretched into thin wires.
[C]. Metals allow heat and electricity to pass through them easily.
[D]. All of the above
Q4
Tincture of iodine has antiseptic properties. This solution is made by dissolving :
[A]. Iodine in potassium iodide
[B]. Iodine in acetone
[C]. Iodine in water
[D]. Iodine in alcohol
Q5
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
Q6
Pooja is writing some statements but she confused to know why water is considered as a compound and not a mixture. If you know the answer to this question, help her to choose the incorrect statements:
[A]. Water cannot be separated into its constituent’s hydrogen and oxygen by the physical methods.
[B]. It contains hydrogen and oxygen combined together in a fixed proportion of 1 : 9 by mass.
[C]. Heat and light are given out when water is prepared by burning hydrogen in oxygen.
[D]. None of the above.
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
Which of the following statement is or are incorrect?
[A]. Centrifugation is a method for separating the suspended particles of a substance from a liquid in which the mixture is rotated at a high speed in a centrifuge.
[B]. The process of centrifugation is used in dairies to separate cream from milk.
[C]. The separation of a dissolved solids from a liquid can be done by only one methods as evaporation.
[D]. None of 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.
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Last Edited: June 10, 2023
