9th Class Science Is Matter Around Us Pure Question Bank

done Is Matter Around us Pure Total Questions - 50

• question_answer1)
  What kind of solution is milk?
  A)
   Suspension                    done clear
  B)
   Colloid   done clear
  C)
   True solution     done clear
  D)
   Alloy done clear
  View Solution play_arrow

• question_answer2)
  A liquid and a solid are found together in a single phase. What is this known as?
  A)
   Solution              done clear
  B)
          Solute done clear
  C)
   Solvent                         done clear
  D)
   Emulsion done clear
  View Solution play_arrow

• question_answer3)
  Which of the following is a homogeneous solution?
  A)
   Muddy water done clear
  B)
   Bread done clear
  C)
   Concrete done clear
  D)
   A solution of sugar in water   done clear
  View Solution play_arrow

• question_answer4)
  What kind of a colloidal solution is an emulsion?
  A)
   Solid dispersed in solid. done clear
  B)
   Liquid dispersed in liquid.   done clear
  C)
   Gas dispersed in liquid. done clear
  D)
   Liquid dispersed in solid. done clear
  View Solution play_arrow

• question_answer5)
  In which of the following does scattering of light takes place?
  A)
   Electrolytic solutions done clear
  B)
   Colloidal solutions   done clear
  C)
   Electro dialysis done clear
  D)
   Alcoholic solutions done clear
  View Solution play_arrow

• question_answer6)
  Which of the following forms a colloidal solution in water?
  A)
   Salt                  done clear
  B)
          Glucose done clear
  C)
   Starch                done clear
  D)
          Barium nitrate done clear
  View Solution play_arrow

• question_answer7)
  Which of the following is NOT a physical change?
  A)
   Tearing a paper done clear
  B)
   Bending an iron rod done clear
  C)
   Freezing water into ice done clear
  D)
   Curdling of milk   done clear
  View Solution play_arrow

• question_answer8)
  In which of the following is Tyndall effect observed?
  A)
   Solution                        done clear
  B)
   Precipitate done clear
  C)
   Sol                     done clear
  D)
          Vapour done clear
  View Solution play_arrow

• question_answer9)
  How is Brownian motion caused?
  A)
   Through temperature fluctuations within the liquid phase done clear
  B)
   Through attraction and repulsion between the charges on the colloidal particles done clear
  C)
   Through collision of molecules between the colloidal particles   done clear
  D)
   Through pressure variations within the liquid phase done clear
  View Solution play_arrow

• question_answer10)
  To which of the following category does ice-cream belong?
  A)
   Solution            done clear
  B)
          Emulsion   done clear
  C)
   Element            done clear
  D)
          Suspension done clear
  View Solution play_arrow

• question_answer11)
  What can be observed when sunlight is passed through a colloidal solution?
  A)
   Adsorption        done clear
  B)
          Coagulation done clear
  C)
   Tyndall effect      done clear
  D)
          Brownian motion done clear
  View Solution play_arrow

• question_answer12)
  What is a sol?
  A)
   A solid dispersed in a liquid   done clear
  B)
   A liquid dispersed in a gas done clear
  C)
   A gas dispersed in a liquid done clear
  D)
   A gas dispersed in a solid done clear
  View Solution play_arrow

• question_answer13)
  In both dialysis and osmosis which particles do not pass through the semipermeable membrane?
  A)
   Water               done clear
  B)
   Small molecules done clear
  C)
   Colloids              done clear
  D)
          All of the above done clear
  View Solution play_arrow

• question_answer14)
  What is the name of the process for the separation of colloidal panicles from those of crystalloids called?
  A)
   Dialysis               done clear
  B)
          Pyrolysis done clear
  C)
   Peptization        done clear
  D)
          Photolysis done clear
  View Solution play_arrow

• question_answer15)
  Shaving cream produces foam. What kind of colloid is shaving cream?
  A)
   Liquid dispersed in a gas done clear
  B)
   Gas dispersed in a liquid   done clear
  C)
   Solid dispersed in a liquid done clear
  D)
   Solid dispersed in a gas done clear
  View Solution play_arrow

• question_answer16)
  What kind of solution is drinking soda?
  A)
   Gas in liquid        done clear
  B)
   Liquid in gas done clear
  C)
   Gas in gas         done clear
  D)
          Solid in liquid done clear
  View Solution play_arrow

• question_answer17)
  What kind of solution is amalgam?
  A)
   Solid in solid                 done clear
  B)
   Solid in mercury   done clear
  C)
   Liquid in solid done clear
  D)
          Liquid in liquid done clear
  View Solution play_arrow

• question_answer18)
  Which of the following is a true solution?
  A)
   \[NaCl\] in sulphur dioxide. done clear
  B)
   Copper in silver.   done clear
  C)
   Salt in petrol. done clear
  D)
   Mud in water. done clear
  View Solution play_arrow

• question_answer19)
  Which of the following is a chemical change?
  A)
   Boiling of eggs.   done clear
  B)
   Evaporation of water. done clear
  C)
   Precipitation of snow. done clear
  D)
   Melting of wax. done clear
  View Solution play_arrow

• question_answer20)
  What are the materials which contain at least two pure substances and show the properties of their constituents called?
  A)
   A compound done clear
  B)
          An element done clear
  C)
   A mixture           done clear
  D)
          A solution done clear
  View Solution play_arrow

• question_answer21)
  Which of the following is a solid-in-solid colloid?
  A)
   Shaving cream done clear
  B)
          Milk of magnesia done clear
  C)
   Milky glass          done clear
  D)
          Cheese done clear
  View Solution play_arrow

• question_answer22)
  What is a solution of iodine in carbon tetrachloride called?
  A)
   Aqueous solution done clear
  B)
          Alcoholic solution done clear
  C)
   Non-aqueous solution       done clear
  D)
   Tincture of iodine done clear
  View Solution play_arrow

• question_answer23)
  Which of the following is a characteristic of both mixtures and compounds?
  A)
   They contain components in fixed proportions. done clear
  B)
   Their properties are the same as those of their components. done clear
  C)
   Their weight is equal to the sum of the weights of their components.   done clear
  D)
   Energy is given out when they are being prepared. done clear
  View Solution play_arrow

• question_answer24)
  What happens when salt dissolved in water is heated?
  A)
   There is an increase in the boiling point.   done clear
  B)
   There is no change in the boiling point. done clear
  C)
   There is a decrease in the boiling point. done clear
  D)
   All of the above done clear
  View Solution play_arrow

• question_answer25)
  Which of the following is NOT a compound?
  A)
   Sugar                           done clear
  B)
   Common salt done clear
  C)
   Diamond            done clear
  D)
          Plaster of Paris done clear
  View Solution play_arrow

• question_answer26)
  Which of the following is an example of a mixture?
  A)
   Sugar               done clear
  B)
          Brass   done clear
  C)
  \[C{{O}_{2}}\]             done clear
  D)
         \[N{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer27)
  Which of the following obey the law of constant proportions in their formation?
  A)
   Mixtures           done clear
  B)
          Compounds   done clear
  C)
   Elements           done clear
  D)
          Colloids done clear
  View Solution play_arrow

• question_answer28)
  By which process the drugs from the blood are separated?
  A)
   Distillation         done clear
  B)
          Chromatography   done clear
  C)
   Sublimation      done clear
  D)
          Separating funnel done clear
  View Solution play_arrow

• question_answer29)
  How can sugar from sugar solution be separated?
  A)
   By distillation    done clear
  B)
   By evaporation   done clear
  C)
   By sublimation done clear
  D)
          By filtration done clear
  View Solution play_arrow

• question_answer30)
  Which of the following processes of separating substances involves both evaporation and condensation?
  A)
   Filtration           done clear
  B)
          Crystallisation done clear
  C)
   Distillation           done clear
  D)
   Sedimentation done clear
  View Solution play_arrow

• question_answer31)
  Which of the following processes is useful to collect pure water from a solution of sugar and water or salt and water?
  A)
   Filtration           done clear
  B)
          Evaporation done clear
  C)
   Distillation       done clear
  D)
          Crystallisation done clear
  View Solution play_arrow

• question_answer32)
  Which of the following processes can be useful in separating the salt from a mixture of sand and salt?
  A)
   Dissolution    done clear
  B)
          Filtration done clear
  C)
   Evaporation   done clear
  D)
          All of the above   done clear
  View Solution play_arrow

• question_answer33)
  What is the process involved in making candy?
  A)
   Filtration           done clear
  B)
          Crystallisation   done clear
  C)
   Sedimentation done clear
  D)
          Centrifugation done clear
  View Solution play_arrow

• question_answer34)
  By which method can ammonium chloride be separated from sand?
  A)
   By hand picking done clear
  B)
          By filtration done clear
  C)
   By sublimation    done clear
  D)
   By diffusion done clear
  View Solution play_arrow

• question_answer35)
  By which process can we separate camphor from ammonium chloride?
  A)
   Filtration done clear
  B)
   Sublimation done clear
  C)
   Dissolution and evaporation   done clear
  D)
   Distillation done clear
  View Solution play_arrow

• question_answer36)
  Which of the following apparatus is used to separate a mixture of immiscible liquids?
  A)
   Centrifuge         done clear
  B)
          Condenser done clear
  C)
   Separating funnel             done clear
  D)
   Distillation flask done clear
  View Solution play_arrow

• question_answer37)
  What is the technique used to separate dirt particles from clothes in a washing machine?
  A)
   Magnetic separation       done clear
  B)
   Filtration done clear
  C)
   Evaporation      done clear
  D)
          Centrifugation   done clear
  View Solution play_arrow

• question_answer38)
  What kind of change is undergone when an electric bulb glows
  A)
   A physical change   done clear
  B)
   A chemical change done clear
  C)
   Both a physical and a chemical change done clear
  D)
   A permanent change done clear
  View Solution play_arrow

• question_answer39)
  Both cooking oil and water are liquids at room temperature. By which of the given characteristics are they different chemically?
  A)
   Same colour and flammability done clear
  B)
   Odour and in flammability   done clear
  C)
   Solubility and similar taste done clear
  D)
   Odour and flammability done clear
  View Solution play_arrow

• question_answer40)
  What type of mixture is steel?
  A)
   Solid-liquid heterogeneous mixture done clear
  B)
   Solid-solid heterogeneous mixture   done clear
  C)
   Solid-solid homogeneous mixture done clear
  D)
   Pure substance done clear
  View Solution play_arrow

• question_answer41)
  Two substances \[P\] and \[Q\] when brought together, form substance \[R\] with the evolution of heat. The properties of \[R\] are different from both \[P\] and\[Q\]. What is substance\[R\]?
  A)
   A compound   done clear
  B)
          An element done clear
  C)
   A metal            done clear
  D)
          A mixture done clear
  View Solution play_arrow

• question_answer42)
  Which of the following pairs of colloidal solutions have dispersed phase as liquid and dispersing medium as gas?
  A)
   Fog, mist            done clear
  B)
          Butter, milk done clear
  C)
   Fog, smoke       done clear
  D)
          Smoke, foam done clear
  View Solution play_arrow

• question_answer43)
  Which of the following is a true solution?
  A)
   Copper in gold   done clear
  B)
   Sulphur in water done clear
  C)
   Milk done clear
  D)
   \[KCl\] in sulphur dioxide done clear
  View Solution play_arrow

• question_answer44)
  Identify a pure substance from the following?
  A)
   Steel                            done clear
  B)
   Magnalium done clear
  C)
   Ammonia           done clear
  D)
          Gun powder done clear
  View Solution play_arrow

• question_answer45)
  What is the smallest constituent of matter that retains its chemical identity?
  A)
   Atom                           done clear
  B)
   Molecule   done clear
  C)
   Ion                   done clear
  D)
          Radical done clear
  View Solution play_arrow

• question_answer46)
  Which of the following solutions shows Tyndall effect?
  A)
   A solution of common salt done clear
  B)
   A solution of sodium carbonate done clear
  C)
   Starch solution   done clear
  D)
   Sugar solution done clear
  View Solution play_arrow

• question_answer47)
  The size of a colloidal particle is
  A)
   \[{{10}^{-1}}\]to\[{{10}^{-3}}cm\] done clear
  B)
   \[{{10}^{-5}}\]to\[{{10}^{-7}}cm\]   done clear
  C)
   \[{{10}^{-8}}\]to\[{{10}^{-5}}cm\] done clear
  D)
   \[{{10}^{-6}}\]to\[{{10}^{-8}}cm\] done clear
  View Solution play_arrow

• question_answer48)
  Which of these statements is/are true?
  A)
   The components of a suspension can be separated by filtration. done clear
  B)
   The particles of a colloid can pass through a filter paper. done clear
  C)
   The constituents of a compound can be separated easily. done clear
  D)
   Both [a] and [b]   done clear
  View Solution play_arrow

• question_answer49)
  A student added \[10\,\,ml-12\,\,ml\] of Conc. \[{{H}_{2}}S{{O}_{4}}\]in a test tube containing \[5\,\,g-6\,\,g\] of sugar crystals and warmed it gently. He noticed that white crystals slowly turned brown and became a black mass. What happened in this change?
  A)
   \[{{H}_{2}}S{{O}_{4}}\] turned black but no change took place. done clear
  B)
   Sugar got charred by the action of hot. conc. \[{{H}_{2}}S{{O}_{4}}\]and a chemical change took place.   done clear
  C)
   It is only a physical change. done clear
  D)
   It is an irreversible physical change. done clear
  View Solution play_arrow

• question_answer50)
  A dispersed phase particle in a zig-zag movement is shown below. What kind of motion is exhibited by the particle?
  A)
   Transitional motion        done clear
  B)
   Circular motion done clear
  C)
   Linear motion    done clear
  D)
   Brownian motion   done clear
  View Solution play_arrow