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- 1. Multiple Choice
The process of settling down of particles of a solid in a liquid is
Sublimation
Sedimentation
Filtration
Decantation
- 2. Multiple Choice
The solubility ____________ with increase in temperature.
doesn't change
decreases
increases
- 3. Multiple Choice
While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?
Threshing
Sieving
Winnowing
Filtration
- 4. Multiple Choice
The diagram shows the apparatus for separating soil and water. What are the labelled parts?A = distillate, B = filtrateA = filtrate, B = residueA = residue, B = filtrateA = residue, B = distillate - 5. Multiple ChoiceWhat is the boiling point of water?0oC100oC80oC95oC
- 6. Multiple ChoiceFiltration can be used to separate...an insoluble solid from a solutiona soluble solid from a solutiona dissolved solid from a solution
- 7. Multiple Choice
What separation technique does the picture show?
Sieving
filtering
magnetic separation
Distillation
- 8. Multiple Choice
Sawdust is not soluble in water. If, accidentally some particles of sawdust drop into a glass of water. How would you separate them from water?
Decanting
Filtering
Sieving
Distillation
- 9. Multiple ChoiceWhich technique is shown the diagram belowseivingfiltrationdecantingcrystallization
- 10. Multiple ChoiceIron and copper screws could be separated using a magnet becauseiron is magnetic, copper is notcopper is magnetic, iron is notneither metal is magneticcopper screws are heavier than iron and fall off the magnet
- Answer choicesTagsAnswer choicesTags