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- 1. Multiple Choice
Which process of separation requires wind ?
Threshing
Sieving
Hand Picking
Winnowing
- 2. Multiple Choice
In what cases we find the method of Handpicking convenient?
When there is less quantity of impurities
When we need to separate only rice and stones
When the size of impurities are big
When there is only a small quantity and impurities of small size
- 3. Multiple Choice
Which method of Separation is used to separate sand from sawdust?
Hand picking
Winnowing
Sieving
Filtration
- 4. Multiple Choice
Sedimentation is the process of :-
allowing the impurities to settle down
adding chlorine to the water
taking out impurities from water using the hand
by which we add impurities to water
- 5. Multiple Choice
What can be separated by Sieving?
Stones from grains
Husk from wheat
Small impurities from water
Grains from stalks
- 6. Multiple Choice
We filter impurities using a :-
Windmill
Spoon
Bullock cart
Filter paper
- 7. Multiple Choice
What is a Saturated Solution ?
When the solute settles down at the bottom
When no more solute can be added to the solvent and settles at the bottom
When soluble substances do not dissolve in water
A Salt Solution
- 8. Multiple Choice
How do we separate salt from water?
Condensation
Filtration
Distillation
Evaporation
- 9. Multiple Choice
How to make Butter from milk?
Churning
Stirring
Freezing
Adding oil and Freezing
- 10. Multiple Choice
How can we obtain salt from sea water?
By filtration
By evaporation
By condensation
By decantation
- 11. Multiple Choice
Which method is used to separate Sand and water ?
Filtration
Sedimentation
Decantation
Hand picking
- 12. Multiple Choice
Homogenous mixtures are alike ?
True
False
- 13. Multiple Choice
Which of the following materials have lustre ?
Polished Steel
Plastic
Cotton ball
Metal
Paper
- 14. Multiple Choice
Which of the following types of materials are compressable ?
Hard
Soft
- 15. Multiple Choice
Milk is an Immiscible liquid ?
True
False
- 16. Multiple Choice
What do you mean by lustre ?
Shining
Rust
Dark
Types of metal
- 17. Multiple Choice
Which of the following is a miscible liquid ?
Petrol
Oil
Honey
- 18. Multiple Choice
Which mixture honey and water forms ?
Homogenous
Heterogenous
- 19. Multiple Choice
Threshing can be used for :
Separating grains from stalks
Separating leaves from tea
Separating honey from water
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