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- 1. Multiple Choice
------------------------------ is the process of separating heavier and lighter components of a mixture
handpicking
threshing
winnowing
sieving
- 2. Multiple Choice
in construction sites, people use similar sieves to separate pebbles and stones from -------------------
mud
water
flour
sand
- 3. Multiple Choice
when is decantation done
after evaporation
after distillation
after sedimentation
after filtration
- 4. Multiple Choice
Jisny is writing a class test. she knew all the answers but she got confused in the last question. the last question was to select a incorrect answer. Can you help her by choosing the incorrect answer ?
a solution is one in which no more of that substance can be dissolved .
evaporation is the process in which a liquid is converted to its vapor.
husk is separated from heavier seeds of grain by winnowing.
none of the above
- 5. Multiple Choice
what name is given to the solid left on the filter paper ?
the filtrate
the resident
the product
the residue
- 6. Multiple Choice
what is the correct meaning of solubility
can dissolve more solute
is an other name for filtrate
amount of solute that can dissolve in a given amount of solvent
none of the above
- 7. Multiple Choice
which of the following is false
a mixture of milk and water can be separated by filtration
grain and husk can be separated with the process of decantation.
separation of sugar from tea can be done with filtration
all of the above
- 8. Multiple Choice
sieving is used when component of a mixture have -----------------------------
same sizes
all sizes
different sizes
heavier and lighter substances
- 9. Multiple Choice
separating the insoluble suspended solids of various sizes from a liquid is called
evaporation
decantation
sedimentation
filtration
- 10. Multiple Choice
The components of a solution can be separated by -
filtration
evaporation
sedimentation
decantation
- 11. Multiple Choice
what is sublimation
solid changing into a liquid on cooling
solid changing into a gas form on heating
other name for saturated
other name for sedimentation
- 12. Multiple Choice
match the following ☝☝
a) - iii , b) - iv , c) - v , d) - ii , e) - i
a) - ii , b) - i , c) - iv , d) - ii , e) - iii
a) - iii , b) - iv , c) - v , d) - i , e) - ii
- 13. Multiple Choice
Sedimentation and decantation are useful to separate
immiscible liquids.
soluble solid from liquid.
insoluble solid from liquid.
insoluble solid from a liquid where the solid is heavier than the liquid.
- 14. Multiple Choice
which one is true
butter is taken out by churning milk or curd
a mixture of milk and water can be separated by filtration
a solution is a mixture when a substance is completely dissolved in another.
the tea leaves are easy to separate from tea in the process called filtration
- 15. Multiple Choice
imagine that u made a solution of salt and water ,no more salt can dissolve in it but you want to dissolve more .what will u do ?
shake the container
filtrate
alum should be added
heat it
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