Matter in Our Surroundings Quiz Chapter: Matter in Our Surrounding Time: 20 Minutes 1. What remains unchanged on heating the ice cubes? (a) Kinetic energy of ice cubes (b) Physical state of ice cubes (c) Chemical composition of ice (d) Temperature of ice cubes None 2. What is the point at which the temperature does not rise when the ice cubes are heated further? (a) Freezing point (b) Melting point (c) Boiling point (d) Condensation point None 3. Which of these remains constant or unchanged at melting point and boiling point? (a) Physical state of matter (b) Chemical composition of matter (c) Temperature of matter (d) Both (b) and (c) None 4. What happens when ice cube is heated for some time? (a) Kinetic energy increases leading to breaking of inter-particle forces holding the matter at their fixed positions. (b) Ice undergoes transformation into water (c) Temperature rises and pressure become equal to the atmospheric pressure. (d) All of these None 5. Which of these depend upon inter-particle force of attraction? (a) Diffusion (b) Density (c) Shape and size (d) All of these None 6. Which of the following is not a factor of evaporation? (a) Wind (b) Surafce area (c) Humidity (d) Density None 7. Under low temperature and high pressure, which of the following occurs? (a) Solidification of air (b) Expansion of air (c) Compression of air (d) Evaporation None 8. Which of the following is a change of gas directly into solid without undergoing liquid state? (a) Sublimation (b) Deposition (c) Solidification (d) Freezing None 9. Which of the following statements is true? (a) Boiling is a surface phenomenon (b) Evaporation is a bulk phenomenon (c) The rate of evaporation depends upon the surface area exposed to the atmosphere, the temperature, the humidity and the wind speed. (d) Condensation causes cooling None 10. On converting 12°C, 33°C and 78°C to kelvin scale, the correct sequence of temperature will be (a) 285K, 306K and 351K (b) 306K, 285K and 351K (c) 385K, 406K and 451K (d) 285K, 306K and 350K None 11. Which fabric is comfortable for summers? (a) Nylon (b) Acrylic (c) Polyester (d) Cotton None 12. Given the terms in column I and their examples in column II, select the best option (a) A - v, B - ii, C - iv, D - iii, E - i (b) A - v, B - iii, C - iv, D - ii, E - i (c) A - v, B - iii, C - iv, D - i, E - ii (d) A - v, B - iii, C - v, D - ii, E - i None 13. Assertion (A) : Evaporation is a surface phenomenon. Reason (R): The particles of liquid absorb heat energy from the surroundings, overcome the forces of attraction, and change into vapour state at its boiling point. (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true and R is NOT the correct explanation of A (c) A is true but R is false (d) A is false but R is true None 14. Assertion (A): We wear cotton clothes in summer. Reason (R): Cotton is a good absorber of water and absorbs sweat. (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true and R is NOT the correct explanation of A (c) A is true but R is false (d) A is false but R is true None 15. Assertion (A): Water droplets are seen on the outer surface of tumbler containing hot water. Reason (R): Water vapour, when comes in contact of a cool surface, changes into water. (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true and R is NOT the correct explanation of A (c) A is true but R is false (d) A is false but R is true None 16. Assertion (A): When solid melts, the temperature remains constant. Reason (R): The heat is used up in changing the state from solid to liquid. (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true and R is NOT the correct explanation of A (c) A is true but R is false (d) A is false but R is true None 17. Assertion (A): Gases can be liquiefied easily. Reason (R): The gases do not have fixed volume. (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true and R is NOT the correct explanation of A (c) A is true but R is false (d) A is false but R is true None 1 out of 1 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment.