# 6th Class Science Sepration and Substances Question Bank

### done Sepration and Substances

• A) Threshing

B) Winnowing

C) Hand picking

D) None of these

• A) Hand picking

B) Filtration

C) Threshing

D) Any of these

• A) Hand picking

B) Threshing

C) Winnowing

D) Sieving

• A) hand picking

B) threshing

C) winnowing

D) None of these

• A) strainer

C) thresher

D) None of these

• A) blowing air

B) water

C) Both the above

D) None of the above

• A) husk

B) seeds of grain

C) mixture of husk particles and seeds of grains

D) can't predict

• A) Hand picking

B) Winnowing

C) Sieving

D) Any of these

• A) Sieving

B) Decantation

C) Filtration

D) Evaporation

• A) Sedimentation

B) Decantation

C) Evaporation

D) Both sedimentation and decantation

• A) Filter paper

B) Filter funnel

C) Thresher

D) None of these

• A) Hand picking

B) Sedimentation

C) Decantation

D) Filtration

• A) strainer

B) alum

C) stirrer

D) None of these

• A) Decantation

B) Filtration

C) Evaporation

D) Sublimation

• A) Filtration

B) Threshing

C) Hand-picking

D) Churning

• A) Evaporation

B) Filtration

C) Decantation

D) Condensation

• A) nitration

B) decantation

C) sedimentation

D) churning

• A) Condensation

B) Filtration

C) Threshing

D) Decantation

• A) sedimentation

B) decantation

C) nitration

D) evaporation

• A) a solution which can dissolve more of a solute at a given temperature

B) a solution which cannot dissolve more of solute at a given temperature

C) a solution which can dissolve solute at a lower temperature

D) None of these

• A) evaporation

B) condensation

C) transpiration

D) both (a) and (b)

• A) condensation

B) distillation

C) sublimation

D) None of these

• A) Evaporation

B) Vaporization

C) Boiling

D) None of these

• A) Plugging

B) Hand picking

C) Winnowing

D) Threshing

• A) Filtration

B) Churning

C) Sublimation

D) Evaporation

• A) Distillation

B) Centrifugation

C) Filtration

D) Using alum crystals

• A) Mud gets dissolved due to alum

B) Mud floats due to alum

C) Mud settles down due to alum

D) Alum kills germs from muddy water

• A) Evaporation

B) Filtration

C) Sublimation

D) Distillation

• A) the process of mechanically transferring a clear liquid without disturbing the settled solid particles.

B) the process of allowing the solid particles to settle at the bottom.

C) a combination of both the above

D) None of these

• A) the vapours of water are allowed to cool and change into liquid water

B) the vapours of a liquid are allowed to cool and change into liquid state

C) the vapours of a substance are changed directly to solid state

D) liquid is heated to get its vapours.

• A) Difference in odour

B) Difference in weight

C) Difference in size

D) Difference in colour

• A) Tea can be separated from the leaves by filtration.

B) A mixture of salt and sand can be separated by distillation.

C) Winnowing will separate wheat grains from husk and dust.

D) A mixture of sand and salt is partially soluble in water.

• A) two miscible liquids

B) two immiscible liquids

C) two metals in an alloy

D) solid-solid mixture

• A) Churning

C) Stirring

D) Sieving

• A) Common salt

B) Oxygen

C) Alum

D) Sugar

• A) cooling

B) stirring

C) heating

D) None of these

• A) Evaporation

B) Sedimentation

C) Decantation

D) Condensation

• A) Evaporation

B) Condensation

C) Filtration

D) Distillation

• A) Filtration

B) Distillation

C) Decantation

D) Condensation

• A) liquid

B) solid

C) gas

D) None of these

• A) Formation of rainbow

B) Formation of clouds

C) Blue colour of sea

D) Formation of salt from sea water

• A) Evaporation

B) Handpicking

C) Threshing

D) Decantation

• A) Beans in hot water

B) Sand in water

C) Oil in water

D) Coffee in hot water

• A) Drying of clothes

B) Formation of salt from sea water

C) Formation of small droplets at the surface of a bottle containing ice cold water.

D) drying of wet hairs

•  Column-I Column-II A. The process of removal of larger particles from smaller ones. (p) Decantation B. The process of separation of butter from milk (q) Filtration C. The process of separation of components of a muddy water (r) Churning D. The process of separation of components of a mixture of oil and water (s) Sieving

A) $A\to (p),B\to (q),C\to (r),D\to (s)$

B) $A\to (s),B\to (r),C\to (q),D\to (p)$

C) $A\to (r),B\to (s),C\to (p),D\to (s)$

D) $A\to (q),B\to (s),C\to (p),D\to (r)$

•  Column-I Column-II A. The process involved when a heavier con in a mixture settles after water is added to it (p) Condensation B. The process whereby the liquid layer above the settled heavier component is removed (q) Evaporation C. The process in which the liquids get converted to gases (vapours) on heating. (r) Sedimentation D. The process in which gases (vapours) get converted to liquids on cooling (s) Decantation

A) $A\to (r),B\to (s),C\to (q),D\to (p)$

B) $A\to (q),B\to (r),C\to (p),D\to (q)$

C) $A\to (p),B\to (q),C\to (r),D\to (s)$

D) $A\to (s),B\to (r),C\to (q),D\to (p)$

• A) Threshing

B) Hand picking

C) Filtration

D) None of these

• A) Difference in size

B) Difference in weight

C) Difference in shape

D) Difference in colour

• A) Sand

B) Dried leaves

C) Both of these

D) None of these

• A) water

B) solution

C) solute

D) solvent

• A) Condensation

B) Evaporation

C) Filtration

D) Sedimentation

• A) Sedimentation

B) Condensation

C) Evaporation

D) Filtration

• A) Both A and R are true and R is the correct explanation of A.

B) Both A and R are true but R is not the correct explanation of A.

C) A is true but R is false.

D) A is false but R is true.

• A) Both A and R are true and R is the correct explanation of A.

B) Both A and R are true but R is not the correct explanation of A.

C) A is true but R is false.

D) A is false but R is true.

• A) Statement (i) is correct while statement (ii) is incorrect.

B) Statement (ii) is correct while statement (i) is incorrect.

C) Both statements are correct.

D) Both statements are incorrect.

• A) Statement (i) is correct while statement (ii) is incorrect.

B) Statement (ii) is correct while statement (i) is incorrect.

C) Both statements are correct.

D) Both statements are incorrect.

• A) Statement (i) is correct while statement (ii) is incorrect.

B) Statement (ii) is correct while statement (i) is incorrect.

C) Both statements are correct.

D) Both statements are incorrect.

• A) separating funnel

C) filter funnel

D) stirrer

• A) Sedimentation

B) Decantation

C) Filtration

D) Distillation

• A) a saturated solution

B) an unsaturated solution

C) a clear solution

D) a suspension

• A) Fig. I$\to$Evaporation, Fig II$\to$Decantation

B) Fig. I$\to$Sedimentation, Fig II$\to$ Decantation

C) Fig. I$\to$Decantation, Fig II$\to$Filtration

D) Fig. I$\to$Decantation, Fig II$\to$Evaporation

• A) In (i) and (ii)

B) In (ii) and (iv)

C) In (iv) only

D) In (i) only

• A) the rate of evaporation of alcohol is faster than that of water

B) both alcohol and water evaporate at same rate

C) water does not evaporate

D) None of the above

• A) Sugar - Salt ? Ice

B) Ice-Sugar-Salt

C) Sugar - Ice ? Salt

D) Salt-Ice-Sugar

• A) filtration

B) decantation

C) distillation

D) None of these

• A) threshing

B) winnowing

C) sedimentation

D) decantation

• A) sieve

B) thresher

C) separating funnel

D) None of these

• A) The rate of evaporation of solution of beaker 'A' is more than that of 'B'

B) The rate of evaporation of solution beaker 'A' is less than that of 'B'

C) The rate of evaporation is same

D) None of the above

• A) difference in size of particles of saw dust and sugar

B) difference in solubility of saw dust and sugar in water.

C) difference in density of saw dust and sugar

D) Both (a) and (b)

• A) 2

B) 4

C) 6

D) 8

• A) 7

B) 5

C) 6

D) can't predict

• A) a saturated solution

B) an unsaturated solution

C) not a solution

D) None of these

• A) heat the mixture

B) add the mixture to water

C) handpick the glass pieces

D) handpick the sugar particles

• A) I and II only

B) I and III only

C) II and IV only

D) III and IV only

• A) Shake the mixture with water, filter and dry the residue on the filter paper.

B) Shake the mixture with water, filter and evaporate the filtrate.

C) Heat the mixture gently and collect the substance which sublimes.

D) Shake the mixture with water and filter it.

• A) There was insufficient sugar in the solution.

B) He had forgotten to stir the solution during heating-

• A) Sedimentation

B) Evaporation

C) Winnowing

D) Sieving

• A) Collection of water $\to$evaporation$\to$crystallization

B) Collection of water$\to$condensation$\to$evaporation

C) Collection of water$\to$crystallization$\to$condensation

D) Collection of water$\to$evaporation$\to$condensation

• A) the solid that remains on the filter paper.

B) the liquid that drains through the filter paper

C) the type of filter paper used

D) the mixture before separation

• A) Decanting it

B) Mixing it

C) Filtering it

D) Threshing it

• A) sedimentation, decantation and filtration

B) decantation, filtration and evaporation

C) decantation, winnowing, threshing

D) sedimentation, dissolving, condensation

• A) Mixing the mixture with water and then filtering it. Then we could evaporate the water from the resulting filtrate.

B) Mixing the mixture with water and then filtering it. Then we could evaporate the sand from the resulting solid.

C) Mixing the mixture with oil and then filtering it. Then we could evaporate the solid out.

D) Both (b) and (c)

• A) A mixture of salt and sugar

B) A mixture of salt and water

C) Rice containing stones and dust

D) Rice containing salt

• A) Sedimentation

B) Condensation

C) Evaporation

D) Filtration

• A) (i), (ii), (iii) and (iv) by filtration

B) (i), (iii) and (iv) by filtration

C) (ii) and (iv) by sedimentation

D) (i), (iii) and (iv) by churning.

•  Column-I Column-II A. The process by which coffee machines separate ground coffee from the coffee solution (p) Threshing B. The process in which stalks are beaten for separating grain seeds (q) Condensation C. The process due to which clothes are dried in cloth dryer (r) Filtration D. The process due to which cloud formation takes place (s) Evaporation

A) $A\to (q),B\to (s),C\to (p),D\to (r)$

B) $A\to (r),B\to (p),C\to (s),D\to (q)$

C) $A\to (q),B\to (s),C\to (p),D\to (r)$

D) $A\to (r),B\to (s),C\to (q),D\to (p)$

•  Column I Column II A. She added more of the sugar in solution at the same temperature (p) Sugar crystals are formed and settle down B. She added more of the sugar in solution at high temperature (q) Solution become unsaturated due to dilution C. She allowed the solution to cool (r) Sugar does not dissolve any more D. She added more of the water at the same temperature (s) Sugar get dissolve in water

A) $A\to (r),B\to (s),C\to (p),D\to (q)$

B) $A\to (r),B\to (p),C\to (q),D\to (s)$

C) $A\to (s),B\to (q),C\to (r),D\to (p)$

D) $A\to (q),B\to (s),C\to (p),D\to (r)$

• A) decantation

B) sedimentation

C) filtration

D) All of these

• A) If we first add ice

B) If we first add sugar

C) If we use a stirrer

D) Can't predict

• A) will it be dissolved

B) will it remain undissolved

C) the lemonade will not be fit to drink

D) the lemonade will be less sweet than it was previously

• A) Water + Sand + Glass

B) Oxygen + Hydrogen + Salt

C) Stones + Rice + Water

D) Sand + Sugar + Water

• A) Sugar

B) Sand

C) Glass

D) Oil

• A) Sugar

B) Sand

C) Glass

D) Oil

• A) Filtration

B) Handpicking

C) Sedimentation

D) None of these

• A) Winnowing

B) Sedimentation

C) Sieving

D) Both (a) and (b)

• A) colour

B) shape

C) weight

D) size

• A) Filtration

B) Winnowing

C) Evaporation

D) Handpicking

• A) Residue: Paneer, Filtrate-liquid portion

B) Residue: liquid portion. Filtrate ? Paneer

C) Residue : Milk, Filtrate ? Paneer

D) Residue: liquid portion. Filtrate ? Milk

• A) density

B) shape

C) size

D) colour

• A) Both A and R are true and R is the correct explanation of A.

B) Both A and R are true but R is not the correct explanation of A.

C) A is true but R is false.

D) A is false but R is true.

• A) Both A and R are true and R is the correct explanation of A.

B) Both A and R are true but R is not the correct explanation of A.

C) A is true but R is false.

D) A is false but R is true.

• A) Statements (i) and (iii) are incorrect but (ii) is correct.

B) Statements (i) and (ii) are incorrect but (iii) is correct.

C) All statements are correct.

D) All statements are incorrect.

• A) Statements (i) and (iii) are incorrect but (ii) is correct.

B) Statements (i) and (ii) are incorrect but (iii) is correct.

C) All statements are correct.

D) All statements are incorrect.

• A) Statements (i) and (iii) are incorrect but (ii) is correct.

B) Statements (i) and (ii) are incorrect but (iii) is correct.

C) All statements are correct.

D) All statements are incorrect.

• A) Only A

B) Only B

C) A and B both

D) Can't predicted

• A) Residue and filtrate

B) Mixture and filtrate

C) Residue and solution

D) None of these

• A) increase in solubility of the solute

B) decrease in solubility of the solute

C) increase in volume of solvent

D) None of the above

• A) the water vapour in the air

B) the cold glass surface

C) the ice cubes

D) None of these