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

Chemistry Quiz on "matter in our surrounding" Based on NCERT for SSC 2016_40.1
Q1. When the liquid starts boiling, the further heat energy which is supplied—
(a) Increases the temperature of the liquid.
(b) is absorbed as latent heat of vaporization by the liquid 
(c) is lost to the surrounding as such
(d) increases the K.E of the particle in the liquid


Q2. Statement A: Evaporation is a surface phenomenon but boiling is not. 
Statement B: The diffusion of the gases varies inversely as the square root of their densities. 
Which of the two statements is true?
(a) Both A and B
(b) Statement A
(c) Statement B
(d) Neither A nor B

Q3. Diethyl ether evaporates faster than ethyl alcohol because of which factor?
(a) Molar mass of ether is greater than that of ether.
(b) Vapour pressure of ether is greater than that of alcohol
(c) vapour pressure of alcohol is greater than that of ether
(d) Boiling point of ether is higher than that of alcohol

Q4. When acetone or nail polish remover is applied cooling is experienced due to which factor?
(a) reaction of acetone with skin
(b) Boiling of acetone.
(c) Reaction of nail polish with acetone
(d) Evaporation of acetone from the nail

Q5. Match the following with correct response. 
(1) Fusion 
(2) Vaporization 
(3) Condensation 
(4) Solidification 
(A) Change of liquid state into gaseous state 
(B) Change of liquid state into solid state 
(C) Change of vapour state into liquid state 
(D) Change of solid state into liquid state
(a) 1-A, 2-C, 3-B, 4-D
(b) 1-B, 2-D, 3-A, 4-C
(c) 1-D, 2-A, 3-C, 4-B
(d) 1-C, 2-B, 3-D, 4-A

Q6. Identify the incorrect statement about evaporation?
A It causes cooling 
B It increase with increase in humidity 
C It decreases with increase in temperature 
D It increases with increase in wind speed
(a) (B) and (C) are correct
(b) (A), (B) and (C) are correct
(c) (A) and (B) are correct
(d) All of these

Q7. Why water kept in an earthen pot becomes cool in summer?
A. Molecules of water escape through pores, and cause cooling 
B. Earthen pots are made up of clay 
C. It decreases the temperature of water 
D. In summer, the rate of evaporation of water is faster. 
(a) (A), (B) and (C) are correct
(b) (B) and (C) are correct
(c) (A) and (B) are correct
(d) none of the above

Q8. Three pieces of cloths were soaked in water, alcohol and ether separately and kept on a table. What is the decreasing order of drying of the cloths?
(a) Water > Alcohol > Ether
(b) Ether < Alcohol > Water
(c) Water < Alcohol < Ether
(d) none of the above
Q9. Sulphur dioxide is collected in the lab in a gas jar by upward displacement of air. Which of the following statement is correct regarding the density of the gas?
(a) Its density is equal to that of air
(b) It is lighter than air
(c) It is heavier than air
(d) No correct statement can be made about the density of the gas

Q10. Which of the following is needed by surgeons during surgery?
(a) Ethane
(b) Propanol
(c) ether
(d) Acid



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