9th Class Science Matter in Our Surroundings Question Bank

done Matter In Our Surroundings Total Questions - 40

• question_answer1)
  Which of the following elements is liquid at room temperature?
  A)
  Argon                done clear
  B)
  Copper done clear
  C)
  Mercury done clear
  D)
  Calcium done clear
  E)
  None of these done clear
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• question_answer2)
  Which one of the following is not a matter?
  A)
  Air                                done clear
  B)
  Water done clear
  C)
  Paper                done clear
  D)
  Smile done clear
  E)
  None of these done clear
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• question_answer3)
  Which one of the following statements is not correct about solid?
  A)
  Solids have fixed shape done clear
  B)
  Solids have fixed volume done clear
  C)
  Solids can flow done clear
  D)
  Solids have high densities done clear
  E)
  None of these done clear
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• question_answer4)
  Which one of the following statements is correct?

  Statement 1: In solids, molecules are tightly packed.

  Statement 2: Force of attraction between molecules in solids is very weak.

  A)
  Statement 1 only done clear
  B)
  Statement 2 only done clear
  C)
  Both statements are correct done clear
  D)
  Both statements are incorrect done clear
  E)
  None of these done clear
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• question_answer5)
  Which one of the following is correct about gas?
  A)
  A gas does not have a fixed shape. done clear
  B)
  A gas does not have fixed volume. done clear
  C)
  A gas can be compressed easily. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer6)
  In which one of the following states of matter, maximum movement of molecules is noticed?
  A)
  Solid                 done clear
  B)
  Liquid done clear
  C)
  Gas                   done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer7)
  The temperature at which a solid substance melts at atmospheric pressure is called its:
  A)
  Melting point                  done clear
  B)
  Boiling point done clear
  C)
  Ignition temperature        done clear
  D)
  Latent heat done clear
  E)
  None of these done clear
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• question_answer8)
  Which one of the following statements is correct?

  Statements 1: Physical state of a substance can be changed by changing its temperature

  Statement 2: Physical state of a substance can be changed by changing pressure

  A)
  Statement 1 done clear
  B)
  Statement 2 done clear
  C)
  Both statements are correct done clear
  D)
  Both statements are incorrect done clear
  E)
  None of these done clear
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• question_answer9)
  Which one of the following statements is correct?

  Statement 1: If temperature of a solid substance is increased, the force of attraction between its molecules will also increase

  Statement 2: If temperature of a solid substance is increased, the force of attraction between its molecules will decrease

  A)
  Statement 1 only done clear
  B)
  Statement 2 only done clear
  C)
  Both statements are correct done clear
  D)
  Both statements are incorrect done clear
  E)
  None of these done clear
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• question_answer10)
  In which one of the following physical states of a substance force of attraction between molecules is maximum?
  A)
  Solid     done clear
  B)
  Liquid done clear
  C)
  Gas                               done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer11)
  Which of the following is a mixture?
  A)
  Water done clear
  B)
  Methane done clear
  C)
  Mercury done clear
  D)
  Solution of sugar and water done clear
  E)
  None of these done clear
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• question_answer12)
  Which of the following materials falls in the category of pure substances?
  A)
  Air                                done clear
  B)
  Mercury done clear
  C)
  Muddy water                  done clear
  D)
  Milk done clear
  E)
  None of these done clear
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• question_answer13)
  Which of the following is an example of metalloid?
  A)
  Coal                              done clear
  B)
  Coke done clear
  C)
  Copper              done clear
  D)
  Boron done clear
  E)
  None of these done clear
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• question_answer14)
  Which of the following statements is incorrect for metal?
  A)
  They are poor conductors of electricity. done clear
  B)
  They are ductile. done clear
  C)
  They are malleable. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer15)
  Which of the following elements is a non-metal?
  A)
  Mercury             done clear
  B)
  Potassium done clear
  C)
  Carbon  done clear
  D)
  Calcium done clear
  E)
  None of these done clear
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• question_answer16)
  Which of the following is an example of suspension?
  A)
  Solution of sugar and water done clear
  B)
  Muddy water done clear
  C)
  Milk done clear
  D)
  Crystal of copper sulphate done clear
  E)
  None of these done clear
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• question_answer17)
  Which one of the following statements is correct?
  A)
  Non-metals are generally hard. done clear
  B)
  Non-metals have high tensile strength. done clear
  C)
  Non-metals have low density. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer18)
  Which of the following statements is incorrect?
  A)
  A true solution is homogeneous mixture. done clear
  B)
  Very small particles of the solution can scatter a beam of light. done clear
  C)
  Solute particles of true solution cannot be separated from the mixture by the process of filtration. done clear
  D)
  Particles of true solution cannot be seen with naked eyes. done clear
  E)
  None of these done clear
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• question_answer19)
  Which one of the following shows the process of electrophoresis?
  A)
  True solution                  done clear
  B)
  Colloid done clear
  C)
  Suspension                     done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer20)
  Which one of the following is a liquid non-metal?
  A)
  Gallium             done clear
  B)
  Bromine done clear
  C)
  Lead                             done clear
  D)
  Hydrogen done clear
  E)
  None of these done clear
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• question_answer21)
  Which one of the following statements is incorrect?
  A)
  Increase in surface area, increases the rate of evaporation. done clear
  B)
  Increase in temperature, increases the rate of evaporation. done clear
  C)
  Increase in humidity, increases the rate of evaporation. done clear
  D)
  Increase in wind speed, increases the rate of evaporation. done clear
  E)
  None of these done clear
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• question_answer22)
  Vapourisation takes place:
  A)
  At all temperatures. done clear
  B)
  At melting point of the liquid. done clear
  C)
  At the boiling point of, the liquid. done clear
  D)
  At the freezing point of the liquid. done clear
  E)
  None of these done clear
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• question_answer23)
  The process behind disappearing of nephthalene balls with time is known as:
  A)
  Melting              done clear
  B)
  Condensation done clear
  C)
  Sublimation done clear
  D)
  Matter done clear
  E)
  None of these done clear
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• question_answer24)
  Why does a book is solid at room temperature?
  A)
  It has fixed shape.           done clear
  B)
  It has fixed volume. done clear
  C)
  It cannot flow.    done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer25)
  How much of a given substance is mixed with another substances is defined by ____ of a solution.
  A)
  Temperature                   done clear
  B)
  Concentration done clear
  C)
  Solvent              done clear
  D)
  Humidity done clear
  E)
  None of these done clear
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• question_answer26)
  A solution is prepared by dissolving 20 g of NaCl in 200 g of water. Find the concentration of the solution.
  A)
  11.1%               done clear
  B)
  9.01% done clear
  C)
  8%                                done clear
  D)
  10% done clear
  E)
  None of these done clear
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• question_answer27)
  The solubility of a solute 'X' in water is 35 g in 100 g of water. The density of the solution is \[1.5m{{l}^{-1}}\]The concentration of ?x? in the solution in % (m/v) is:
  A)
  60%                  done clear
  B)
  38.88% done clear
  C)
  34%                  done clear
  D)
  88% done clear
  E)
  None of these done clear
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• question_answer28)
  A mixture of sand and iodine can be separated by:
  A)
  Filtration                        done clear
  B)
  Evaporation done clear
  C)
  Sublimation done clear
  D)
  Decantation done clear
  E)
  None of these done clear
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• question_answer29)
  Which one of the following is a colloid?
  A)
  Cheese              done clear
  B)
  Ice cream done clear
  C)
  Milk                              done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer30)
  Which of the following is heterogeneous in nature?
  A)
  True solution                  done clear
  B)
  Colloid done clear
  C)
  Suspension                     done clear
  D)
  Both [b] and [c] done clear
  E)
  None of these done clear
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• question_answer31)
  Drugs in blood can be separated by which of the following technique?
  A)
  Filtration done clear
  B)
  Paper Chromatography done clear
  C)
  Distillation done clear
  D)
  Threshing done clear
  E)
  None of these done clear
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• question_answer32)
  ____method is used to separate two miscible liquids.
  A)
  Fractional distillation done clear
  B)
  Magnetic separation done clear
  C)
  Separating funnel done clear
  D)
  Threshing done clear
  E)
  None of these done clear
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• question_answer33)
  Which one of the following substances does not undergo sublimation?
  A)
  Ammonium chloride done clear
  B)
  Iodine done clear
  C)
  Dry ice done clear
  D)
  Ice done clear
  E)
  None of these done clear
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• question_answer34)
  In which of the following colloids the dispersion medium is solid?
  A)
  Whipped Cream  done clear
  B)
  Marshmallow done clear
  C)
  Paint                 done clear
  D)
         Mayonnaise done clear
  E)
  None of these done clear
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• question_answer35)
  Which of the following conditions is essential for using fractional distillation as a method for separation of the components from mixture?

  (i) The components must differ in their boiling points atleast by\[{{15}^{o}}C\].

  (ii) The components must have same boiling points.

  (iii) The components must be miscible with each other.

  (iv)The components, must be immiscible with each other.

  A)
  (i) and (ii)                       done clear
  B)
  (ii) and (iii) done clear
  C)
  (i) and (iv)                      done clear
  D)
  (i) and (iii) done clear
  E)
  None of these done clear
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• question_answer36)
  Which one of the following is an example of aerosol?
  A)
  Rubber sponge    done clear
  B)
  Ruby done clear
  C)
  Cloud    done clear
  D)
  Ink done clear
  E)
  None of these done clear
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• question_answer37)
  Which one of the following will give a true solution when dissolved in water?
  A)
  Chalk                done clear
  B)
  Sand done clear
  C)
  Sugar    done clear
  D)
  Starch done clear
  E)
  None of these done clear
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• question_answer38)
  Tincture of iodine refers to:
  A)
  Iodine dissolved in milk done clear
  B)
  Iodine dissolved in ethanol done clear
  C)
  Iodine dissolved in copper sulphate solution done clear
  D)
  Iodine dissolved in common salt. done clear
  E)
  None of these done clear
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• question_answer39)
  A mixture of water and benzene can be separated by using:
  A)
  Filtration methods done clear
  B)
  Separating funnel methods done clear
  C)
  Centrifugation method done clear
  D)
  Chromatography done clear
  E)
  None of these done clear
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• question_answer40)
  A medical examination which fine precipitates in urine are to be separated. Which of the following separation methods should be used?
  A)
  Paper chromatography done clear
  B)
  Centrifugation done clear
  C)
  Decantation done clear
  D)
  Separating funnel done clear
  E)
  None of these done clear
  View Solution play_arrow