| Class | 9th |
| Subject | Science |
| Chapter 2 | Matter in Our Surroundings |
| No. of Questions | 50 MCQs |
| pdf file | You can download |
Class 9 Science Matter in Our Surroundings MCQ
1. Which of the following is not matter?
(A) Chair
(B) Air
(C) Feelings
(D) Sand
Correct Answer: (C)
2. Which of the following is matter?
(A) Friendship
(B) Smell
(C) Sugar
(D) Idea
Correct Answer: (C)
3. Which of the following is not matter?
(A) Hydrogen
(B) Iron
(C) Oil
(D) Taste
Correct Answer: (D)
4. Which of the following is not a characteristic of matter?
(A) matter has mass
(B) Matter occupies space
(C) Love and affection constitute matter
(D) Matter is made up of very tiny particles
Correct Answer: (C)
5. What happens when we dissolve sugar in water
(A) The sugar particles settle down at the bottom
(B) Sugar does not dissolve in water
(C) Sugar particles occupy the spaces between the water particles
(D) Sugar floats on water
Correct Answer: (C)
6. When we dissolve sugar in water, the water level
(A) Increases
(B) Decreases
(C) Remains unchanged
(D) Insufficient data
Correct Answer: (C)
7. Which of the following is not a characteristic of particles of matter?
(A) Particles of matter have spaces between them
(B) Particles of matter do not move
(C) Particles of matter are very-very small
(D) Particles of matter attract each other.
Correct Answer: (B)
8. When we spray perfume it spreads in the whole room. Which characteristic of particles of matter is illustrated by this observation?
(A) particles of matter have spaces between them
(B) particles of matter are constantly moving
(C) particles of matter are very small
(D) particles of matter attract each star
Correct Answer: (B)
9. A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be broken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
(A) Particles of matter have spaces between them
(B) Particles of matter do not move
(C) Particles of matter are very-very small
(D) Particles of matter attract each other.
Correct Answer: (D)
10. Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
(A) Particles of matter have spaces between them
(B) Particles of matter do not move
(C) Particles of matter are very-very small
(D) Particles of matter attract each other.
Correct Answer: (C)
1. Which single term is used to define the mixing of copper sulphate and water kept in beaker, on its own?
(A) Evaporation
(B) Diffusion
(C) Condensation
(D) Mixing
Correct Answer: (B)
2. In which of the following is diffusion fastest?
(A) Solids
(B) Liquid
(C) Gases
(D) None of these
Correct Answer: (C)
3. How can we justify the fact that sugar salt take up the shape of the containers in which they are kept?
(A) They are not solids
(B) Data insufficient
(C) They do not have fixed boundaries
(D) Shape of individual crystal remains fixed
Correct Answer: (D)
4. Ice floats on water because
(A) Ice is denser than water
(B) Ice is less dense than water
(C) Solids generally float on water
(D) Solids have less density than water.
Correct Answer: (B)
5. A form of matter has no fixed shape but has a fixed volume. An example of this form of matter is:
(A) Carbon dioxide
(B) kerosene
(C) Steel
(D) Ozone
Correct Answer: (B)
6. Why gases are so easily compressible because
(A) the particles shrink
(B) the particles can be squeezed
(C) the particles have spaces between them
(D) the particles move faster
Correct Answer: (C)
7. Which of the following is most energetic?
(A) solid
(B) liquid
(C) Gases
(D) all of them
Correct Answer: (C)
8. A few substances are arranged in increasing order of “force of attraction” between their particles. Which one of the following represents the correct statement?
(A) water, air, wind
(B) Air, sugar, oil
(C) Oxygen, water, sugar
(D) Salt, juice, air
Correct Answer: (C)
9. Out of the following an example of matter which can be termed as fluid is:
(A) Carbon
(B) Sulphur
(C) Oxygen
(D) Phosphorous
Correct Answer: (C)
10. Out of the following which pair has maximum and minimum densities respectively?
(A) Iron nail, oxygen
(B) Water, wood
(C) Hydrogen, steel
(D) Nitrogen, milk
Correct Answer: (A)
11. The kelvin temperature is 573 K. What will be the temperature in Celsius?
(A) 150
(B) 302
(C) 300
(D) 273
Correct Answer: (C)
12. What will be the value of 98°F in kelvin?
(A) 273
(B) 209.7
(C) 36.7
(D) 309.7
Correct Answer: (D)
13. Is freezing point of water and melting point of ice, the same?
(A) No
(B) Yes
(C) Insufficient data
(D) None of the above
Correct Answer: (B)
14. What is the physical state of water at 100°C?
(A) Liquid
(B) Gas
(C) Both A & B
(D) None of the above
Correct Answer: (C)
15. Which one of the following does not undergo sublimation?
(A) Iodine
(B) Sodium chloride
(C) Ammonium chloride
(D) Camphor
Correct Answer: (B)
16. Which of the following energy is absorbed during the change of state of a substance?
(A) Specific heat
(B) kinetic energy
(C) Heat of solution
(D) Latent heat
Correct Answer: (D)
17. Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air?
i. Increase in pressure
ii. increase in temperature
iii. decrease in pressure
iv. decrease in temperature
(A) i and ii
(B) i and iii
(C) ii and iii
(D) ii and iv
Correct Answer: (C)
18. Which of the following represents suitable conditions for the liquefaction of gases?
(T = Temperature,P = Pressure )
(A) Low T, Low P
(B) High T, Low P
(C) Low T, High P
(D) High T, High P
Correct Answer: (C)
19. Which of the following has more energy at 100°C?
(A) Ice
(B) Water
(C) Steam
(D) None of the above
Correct Answer: (C)
20. On converting 25°C and 65°C to kelvin scale, the correct sequence of temperature is
(A) 298 K, 338 K
(B) 273 K, 313 K
(C) 300 K, 340 K
(D) 270 K, 310 K
Correct Answer: (A)
21. The evaporation of water increases under the following conditions-
(A) increase in temperature, decrease in surface area
(B) increase in surface area, decrease in temperature
(C) increase in surface area, increase in temperature
(D) increase in temperature & surface area, addition of salt
Correct Answer: (C)
22. Boiling and evaporation, which is a surface phenomenon
(A) Boiling
(B) Evaporation
(C) Both
(D) None of the above
Correct Answer: (B)
23. Match the following
| Column-I | Column-II |
|---|---|
| 1. Solid | a. Sublimation |
| 2. Liquid | b. melting |
| 3. Solid | c. Evaporation |
| 4. Liquid | d. Solidification |
(A) 1-c, 2-b, 3-a, r-d
(B) 1-c, 2-d, 3-b, r-a
(C) 1-b, 2-c, 3-a, r-d
(D) 1-a, 2-d, 3-b, r-c
Correct Answer: (D)
24. The evaporation process results in
(A) Heating
(B) Rise in temperature
(C) Cooling
(D) Temperature remains constant
Correct Answer: (C)
25. In which of the following evaporations of a liquid is best carried out
(A) Test tube
(B) china dish
(C) boiling tube
(D) flask
Correct Answer: (B)
26. Evaporation of a material takes place
(A) Below its boiling point
(B) Above its boiling point
(C) Above its melting point
(D) Below its melting point
Correct Answer: (A)
27. Which of the following set of phenomenon will increase on raising the temperature
(A) Diffusion, evaporation, compression of gases
(B) Evaporation, compression of gas expansion of gases
(C) Evaporation, diffusion, expansion of gases
(D) Evaporation, solubility, expansion of gases
Correct Answer: (C)
28. Which type of clothes should we wear in summer season?
(A) Cotton
(B) Woollen
(C) Synthetic
(D) None of the above
Correct Answer: (A)
29. Why does evaporation occur?
(A) Because all particles are moving with same energy
(B) Because all particles are at rest
(C) Because all particles are moving with different energy
(D) We don’t know
Correct Answer: (C)
30. How does humidity affect evaporation
(A) directly proportional
(B) Inversely proportional
(C) Evaporation does not depend upon humidity
(D) None of the above
Correct Answer: (B)
31. Which of the following method is used to separate petroleum into its constituents?
(A) Chromatography
(B) Crystallisation
(C) Distillation
(D) Fractional distillation
Correct Answer: (D)
32. Which of the following cannot be separated from air by the process of fractional distillation?
(A) oxygen
(B) argon
(C) hydrogen
(D) nitrogen
Correct Answer: (C)
33. The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is:
(A) nitrogen, oxygen, argon
(B) nitrogen, argon, oxygen
(C) argon, oxygen, nitrogen
(D) oxygen, argon, nitrogen
Correct Answer: (B)
34. You are given a mixture of iodine in alcohol, called tincture of iodine. Which method will you use to recover both iodine as well as alcohol, from this mixture?
(A) evaporation
(B) simple distillation
(C) fractional distillation
(D) crystallisation
Correct Answer: (B)
35. Which technique is used to separate drugs from blood?
(A) Sublimation
(B) Chromatography
(C) Centrifugation
(D) Evaporation
Correct Answer: (B)
36. Which of the following components does not get separated by chromatographic technique?
(A) Salt from sea-water
(B) Pigments from natural colours
(C) Colors in a dye
(D) Drugs from blood
Correct Answer: (A)
37. A mixture of ethanol and water can be separated by
(A) Filtration
(B) Decantation
(C) Fractional distillation
(D) Sublimation
Correct Answer: (C)
38. For paper chromatography to work,
(A) the dyes must have different boiling points.
(B) the dyes must have different solubilities in the solvent.
(C) the starting line on the chromatogram must be drawn using pen.
(D) The starting line must be below the level of the solvent.
Correct Answer: (B)
39. What is the name of this separation technique?
(A) Simple distillation
(B) Fractional distillation
(C) Boiling
(D) Evaporation
Correct Answer: (A)
40. Which ink is most soluble?
(A) Blue
(B) Red
(C) Yellow
(D) Green
Correct Answer: (C)
41. Which of the following are homogeneous in nature?
i. ice ii. Wood iii. soil iv. air
(A) (i) and (iii)
(B) (ii) and (iv)
(C) (i) and (iv)
(D) (iii) and (iv)
Correct Answer: (C)
42. Which of the following is not an emulsion?
(A) milk
(B) butter
(C) face cream
(D) shaving cream
Correct Answer: (D)
43. Which one of the following is not a chemical change?
(A) formation of curd
(B) ripening of banana
(C) sublimation of naphthalene
(D) corrosion of photo frame
Correct Answer: (C)
44. One of the following liquids will leave behind a residue on heating. This one is:
(A) brine
(B) bromine
(C) Mercury
(D) alcohol
Correct Answer: (A)
45. Pure copper sulphate can be obtained from an impure sample by the process of:
(A) evaporation
(B) fractional distillation
(C) centrifugation
(D) crystallisation
Correct Answer: (D)
46. The material which is added to water during purification process at the water works so as to disinfect it is:
(A) potassium permanganate
(B) betadine
(C) chlorine
(D) potash alum
Correct Answer: (C)
47. The insoluble substance which settles to the bottom of its container is known as:
(A) Solvent
(B) Solution
(C) Sediment
(D) Slag
Correct Answer: (C)
48. Which of the following statement among the following statements is incorrect about properties of colloids?
1. A colloid is a homogeneous mixture.
2. The size of particles of a colloid is too small to be individually seen by naked eye.
3. Particles of colloids are big enough to scatter a beam of light passing through it and make its path visible.
(A) 1, 2 and 3
(B) 1 and 3
(C) 1 and 2
(D) Only 1
Correct Answer: (D)
49. In a colloidal solution, the zigzag movement of dispersed phase particles is known as
(A) Brownian motion
(B) Translational motion
(C) Circular motion
(D) Rectilinear motion
Correct Answer: (A)
50. The solute and solvent respectively that are present in ‘tincture of iodine’ are:
(A) Water, iodine
(B) Iodine, bromine
(C) Iodine, alcohol
(D) Tin, iodine
Correct Answer: (C)
| Chapter -1 Matter in Our Surroundings |
| Chapter – 2 Is Matter Around Us Pure? |
| Chapter -3 Atoms and Molecules |
| Chapter -4 Structure of the Atom |
| Chapter -5 The Fundamental Unit of Life |
| Chapter -6 Tissues |
| Chapter -7 Motion |
| Chapter -8 Force and Laws of Motion |
| Chapter -9 Gravitation |
| Chapter -10 Work and Energy |
| Chapter -11 Sound |
| Chapter -12 Improvement of Food Resources |