Quiz bowl - Separation of substances

The process of settling down of particles of a solid in a liquid is ------

• Sedimentation

• Decantation

• Filtration

• Evaporation

The solubility ____________ with increase in temperature.

• doesn't change

• decreases

• increases

• none of these

While preparing chapatis, Gita 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

What is the process that is used to separate grains from stalks called?

• Handpicking

• Threshing

• Sieving

• Winnowing

The solution is called saturated when ----

• no more salt can be dissolved in the amount of water

• lot more salt can be added

• some more salt will be dissolved

• None of the above

The diagram shows the apparatus for separating soil and water. What is the process used for?

• evaporation

• condensation

• sedimentation

• filtration

Filtration can be used to separate -----

• an insoluble solid from a solution

• a soluble solid from a solution

• a dissolved solid from a solution

• none of these

Which technique is shown in the diagram ?

• Sieving

• Sedimentation

• Decantation

• Filtration

An example of mixture is --------

• Water and oil

• Cereal and Milk

• Sand and water

• All of the above

The waterdroplets that appear on the outside of a glass of cold water on a warm day is an example of?

• sedimentation

• evaporation

• condensation

• sublimation