Class 9 Science MCQ Questions of Is Matter Around Us Pure are very valuable for the forthcoming yearly Exams. These questions will assist students with acclimating themselves with familiarising significant ideas and concepts.
Class 9 Science Is Matter around Us Pure will help you in deciding the types of questions that can be asked in Class 9 exams and competitive exams. That will assist you with acquiring additional information from the examination point of view.
Practice MCQ Questions for class 9 Chapter-Wise
1. What is the name of the metal which exists in a liquid state at room temperature?
(a) Sodium
(b) Potassium
(c) Mercury
(d) Bromine
2. What is the name of the metal which exists in liquid state at room temperature?
(a) Mercury
(b) Bromine
(c) Sodium
(d) Potassium
3. Two chemical species X and Y combine together to form a product P which contains both X and Y X + Y → P. X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y and P are correct?
(i) P is a compound
(ii) X and Y are compounds
(iii) X and Y are elements
(iv) P has a fixed composition
(a) (i), (ii) and (iii),
(b) (i), (ii) and (iv)
(c) (ii), (iii) and (iv)
(d) (i), (iii) and (iv)
4. What is the name of the non metal which exists in liquid state at room temperature?
(a) Mercury
(b) Bromine
(c) Sodium
(d) Potassium
5. Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A + B → A2B which of the following statements concerning this reaction are incorrect?
(i) The product A2B shows the properties of substances A and B
(ii) The product will always have a fixed composition
(iii) The product so formed cannot be classified as a compound
(iv) The product so formed is an element
(a) (i), (ii) and (iii),
(b) (ii), (iii) and (iv)
(c) (i), (iii) and (iv)
(d) (ii), (iii) and (iv)
6. When the liquid is spun rapidly, the denser particles are forced to the bottom and the lighter particles stay at the top. This principle is used in:
(a) Centrifugation
(b) Fractional distillation
(c) Evaporation
(d) Tunneling
7. Which of the following elements is not a metalloid?
(a) Boron
(b) Silicon
(c) Germanium
(d) Tungsten
8. Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
9. If we put camphor in an open container, its amount keeps on decreasing due to the phenomenon of
(a) Evaporation
(b) Precipitation
(c) Condensation
(d) Sublimation
10. Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod
(iv) Drawing a wire of iron metal
(a) (i), (ii) and (iii)
(b) (i), (ii) and (iv)
(c) (i), (iii) and (iv)
(d) (ii), (iii) and (iv)
11. 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)
12. Which of the following non-metal is a good conductor of electricity?
(a) Aluminium
(b) Silicon
(c) Graphite
(d) Gold
13. Which of the following property does not describe a compound?
(a) It is composed of two or more elements
(b) It is a pure substance.
(c) It cannot be separated into constituents by physical means
(d) It is mixed in any proportion by mass
14. Tincture of iodine has antiseptic properties. This solution is made by dissolving
(a) iodine in potassium iodide
(b) iodine in vaseline
(c) iodine in water
(d) iodine in alcohol
15. 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
16. When two liquids do not mix, they form two separate layers and are known as
(a) Miscible liquids
(b) Immiscible liquids
(c) Saturated liquids
(d) Super saturated liquids
17. Cooking of food and digestion of food:
(a) are both physical processes
(b) are both chemical processes
(c) cooking is physical whereas digestion is chemical
(d) cooking is chemical whereas digestion is physical
18. More than one kind of pure form of matter combines forming………..
(a) Texture
(b) Solution
(c) Mixture
(d) Component
19. Rusting of an article made up of iron is called
(a) corrosion and it is a physical as well as 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
20. According to the definition of pure substance, which of the following is a pure substance?
(a) Ice
(b) Mercury
(c) Iron
(d) All of these