Topic - Separation of Mixtures
In these Worksheets for Science you will find different questions related to the topic Separation of Mixtures that will help you to practice the topic more efficiently.
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| Worksheets for Science (Topic - Separation of Mixtures) |
Multiple Choice Questions
1.These are the examples of sublime products. _______________
(a) camphor (b) dry ice (c) both a and b
2. Ammonium chloride sublimes on _______________.
(a) heating (b) cooling (c) freezing
3. The constituents that sublime on heating are separated by the process of ________________.
(a) evaporation (b) distillation (c) sublimation
4. Common salt is obtained by the process of _________________.
(a) distillation (b) condensation (c) evaporation
5. These can be obtained by the process of distillation.
(a) solids (b) liquids (c) both a and b
6. Juice and water are ________________ liquids.
(a) miscible (b) immiscible (c) none
7. Oil and water are ________________ liquids.
(a) miscible (b) immiscible (c) none
8. Miscible liquids in which difference in boiling points is less than 25°C are separated by ________________.
(a) distillation (b) fractional distillation (c) separating funnel
9. The boiling point of acetone is _______________.
(a) 56°C (b) 65°C (c) 60°C
10. Immiscible liquids are separated by ___________________.
(a) distillation (b) separating funnel (c) fractional distillation
Answers - 1.both a and b 2.heating 3.sublimation 4.evaporation 5.both a and b 6.miscible 7.immiscible 8.fractional distillation 9.56°C 10.separating funnel
Fill ups
1. The process in which solid directly changes into gas on heating is known as __________________.
2. When the vapours are cooled down, they change back into ______________ in sublimation.
3. The process in which liquid changes into vapours on heating is known as ________________.
4. The process in which vapours are cooled down to obtain pure liquid is known as _______________.
5. In distillation, the vapours are condensed in the _______________.
6. In distillation, the pure liquid is collected in the ________________ after condensation.
7. The pure liquid obtained in distillation is known as _________________.
8. In distillation, the solid component is left behind in the _________________.
9. The liquids that mix with each other properly are known as _______________ liquids.
10. The liquids that don't mix each other and form separate layers are known as ________________ liquids.
Answers - 1.sublimation 2.solid 3.evaporation 4.distillation 5.condenser 6.receiver 7.distillate 8.distillation flask 9.miscible 10.immiscible
Write True if the statement is correct and False if the statement is incorrect.
1. The principle of sublimation can be applied on all type of mixtures.
2. The sublime product changes into vapours upon heating.
3. In sublimation, the product that doesn't sublime remains in the dish.
4. In evaporation, the liquid is heated below the boiling point.
5. Evaporation can't take place in sunlight.
6. Distillation takes place with the help of sunlight.
7. In distillation,the difference in boiling points between the two liquids should be more than 25°C.
8. We can get pure water with the help of distillation.
9. The heavier liquid flows down first while using separating funnel.
10. Carbon tetrachloride and water can't be separated by using separating funnel.
Answers - 1.False 2.True 3.True 4.True 5.False 6.False 7.True 8.True 9.True 10.False
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