CBSE Class 9 Science Chapter 2 “Is Matter Around Us Pure” Multiple Choice Questions (MCQs) with Answers
Is Matter Around Us Pure MCQ – Here is a compilation of Free MCQs of Class 9 Science Book Chapter 2 – Is Matter Around Us Pure with Answers. Students can practice free MCQs as have been added by CBSE in the new Exam pattern. At the end of Multiple Choice Questions, the answer key also has been provided for your reference.
Q.1 Which of the following is not obtained as a component during the isolation of components by fractional distillation of air?
(a) Carbon dioxide
(b) Argon
(c) Carbon Monoxide
(d) Oxygen
Q.2. For which of the following mixtures, the same method of separation can be followed as a mixture of naphthalene and sand?
(a) Iron fillings and camphor
(b) Iodine in carbon tetrachloride
(c) Sulphur in carbon disulphide
(d) Camphor and ammonium chloride
Q.3. Identify the odd one out.
(a) Fog
(b) Mist
(c) Smoke
(d) Cloud
Q.4. Which of the following is not the common property of smoke and fog?
(a) Physical state of dispersed phase
(b) Physical state of dispersion medium
(c) Smoke is an aerosol.
(d) Smoke is a heterogeneous mixture.
Q.5. The elemental gas present in acid rain.
(a) Sulphur dioxide
(b) Carbon monoxide
(c) Nitrogen
(d) Oxygen
Q.6. Which of the following mixtures has two components and both are compounds ?
(a) Tincture of iodine
(b) Aqueous solution of common salt
(c) Brine Solution
(d) All of these
Q.7. Lemonade is prepared by a kid at home. Which component of the lemonade should be a pure substance?
(a) Water
(b) Sugar
(c) Salt
(d) Lemon extract
Q.8. Which of the following is the correct representation of a mixture of an element and a compound?
Q.9. Identify the statements which comply with bromine dissolved in carbon tetrachloride?
(a) It is a solid-liquid homogeneous mixture.
(b) After separation, bromine cannot be broken down into simpler substances.
(c) Carbon tetrachloride has the properties of carbon and chlorine.
(d) Bromine and carbon tetrachloride can be separated by a separating funnel.
Q.10. Which of the following substances undergoes change in state when taken from a cold place (temperature > 273 K) to a place where the average room temperature is 40°?
(a) Sulphur
(b) Water vapour
(c) Mercury
(d) Gallium
Q.11. Which of the following substances, on sufficient cooling, produces a solid which undergoes sublimation under normal conditions?
(a) Water vapour
(b) Ammonia
(c) Carbon dioxide
(d) Chlorine
Q.12. The constituents of which substances can be separated only by chemical means?
(a) Brine solution
(b) Alumina
(c) Milk
(d) Gold amalgam
Q.13. In a medical shop, I found four bottles labelled as given in the options. Which bottle is considered to be a heterogeneous mixture in which the particles are not visible to the naked eye?
(a) Noxafil oral suspension
(b) Hydrogen peroxide
(c) Aristozyme digestive syrup
(d) Tincture of iodine
Q.14. Which liquids used for medical purposes are considered as a sol?
(a) Milk of magnesia
(b) Surgical spirit
(c) Hand sanitiser
(d) Dettol
Q.15. A solid can be recovered from a mixture by the method of crystallisation. Which among the following statements comply with the above mixture?
(i) The mixture is homogeneous.
(ii) The mixture taken must be a saturated solution.
(iii) The solid can also be recovered by the method of centrifugation.
(iv) The mixture does not contain any other impurities along with the solid.
(a) i, iii and iv
(b) i and ii
(c) ii and iv
(d) Only i
Answer Key for Class 9 Science Chapter 2 Is Matter Around Us Pure MCQs
| Q. | Ans | Q. | Ans |
| 1 | (c) | 9 | (b) |
| 2 | (a) | 10 | (d) |
| 3 | (c) | 11 | (c) |
| 4 | (a) | 12 | (b) |
| 5 | (a) | 13 | (c) |
| 6 | (c) | 14 | (a) |
| 7 | (b) | 15 | (b) |
| 8 | (c) |
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