Chemistry Quiz on “matter in our surrounding” Based on NCERT for SSC 2016

Q1. The temperature above which a gas cannot be liquefied is known as—
(a) Critical temperature
(b) Boiling temperature
(c) Melting temperature
(d) critical pressure

2. Which of the following statements is correct for solid state? 
(1) The constituent particles are closely packed 
(2) The attracting forces are very strong
(3) The movement of constituent particle is restricted 
(4) They do have fixed shape 
(a) (1), (2) and (3) are correct
(b) (2) and (3) are correct
(c) (1) and (2) are correct
(d) All of these

3. An Almirah is a solid because its—
(a) density is very high
(b) hard and rigid
(c) shape doesn’t change when pressed
(d) All of these

4. In which of the following the inter-particle forces are the strongest?
(a) Sodium Bromide
(b) Carbon dioxide
(c) Ammonia
(d) Ethyl alcohol

5. Match the following with correct response. 
(1) Dry ice 
(2) Humidity 
(3) Temperature 
(4) Liquefied gas 
(A) Reduce evaporation 
(B) Increasing pressure reducing temperature 
(C) Increases evaporation 
(D) Solid carbon-dioxide
(a) 1-C, 2-B, 3-D, 4-A
(b) 1-D, 2-A, 3-C, 4-B
(c) 1-A, 2-C, 3-B, 4-D
(d) 1-B, 2-D, 3-A, 4-C

6. What are the characteristics of the particles of matter? 
(1) Particles of matter are in continuous motion 
(2) Particles of matters do not have spaces between them 
(3) Particles of matter attract each other
(4) Particles of matter are very large in size. 
(a) (1), (2) and (3) are correct
(b) (2) and (3) are correct
(c) (1) and (3) are correct
(d) All of these

7. Which of the following factors are responsible for the change of state of solid CO2 into Vapours?
(a) Increase in temperature
(b) Increase in pressure
(c) both Decrease in pressure and Increase in temperature
(d) Decrees in pressure

8. The melting point of a substance is defined as the constant temperature at Atmospheric pressure when-
(a) The solid is completely changed into liquid
(b) Both the solid & liquid exist together
(c) Only liquid is present
(d) The solid starts melting

9. Which one of the following decreases the extent of evaporation of water?
(a) High wind speed
(b) High temperature
(c) Large surface area
(d) Large humidity

10. A desert cooler given comfort due to cooling caused by evaporation of water. Under which one of the following conditions it works more effectively?
(a) on a rainy day
(b) Hot and dry weather
(c) A hot and sunny day
(d) Hot and humid weather






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