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- 1. Multiple Choice
What is true about Mixture?
A substance which is composed of two or more substances.
It is impure
It cannot be separated
Example- Distilled water
- 2. Multiple Choice
Pick the correct example of Pure substance
Salt
Salad
Tap water
Curry
- 3. Multiple Choice
------------------------------ is the process of separating heavier and lighter components of a mixture
handpicking
threshing
winnowing
sieving
- 4. Multiple Choice
in construction sites, people use similar sieves to separate pebbles and stones from -------------------
mud
water
flour
sand
- 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
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
- 7. 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
- 8. 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
- 9. Multiple Choice
The process of settling down of particles of a solid in a liquid is
Sublimation
Sedimentation
Filtration
Decantation
- 10. Multiple Choice
Which of the following is essential to perform winnowing activity?
Wind
Water
Magnet
Filter paper
- 11. Multiple Choice
Hand picking method is effective in
solid mixture
Liquid mixture
Gaseous mixture
None of these
- 12. Multiple Choice
The solubility ____________ with increase in temperature.
doesn't change
decreases
increases
- 13. Multiple Choice
Salt is obtained from sea water by __________
Sublimation
Filtration
Evaporation
Hand picking
- 14. Multiple Choice
Pure substances are made up of the same kind of atoms.
True
False
- 15. Multiple Choice
Name the given process.
Sublimation
Threshing
Distillation
Magnetic separation
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