Separations of Substances

Suggest the ways to separate :-

Camphor, Common Salt, Saw Dust

• Evaporation, Sedimentation,

  Magnetic Separation

• Magnetic Separation,

  Filtration,

  Decantation

• Sublimation,

  Evaporation,

  Filtration

In the following picture, What is the process known as?

Heterogeneous Mixture Components can be distinguished with each other.

• True

• False

Some solids change directly into their _________ form, when heated.

• Liquids

• Gaseous

• Solids

• None of the Above

This method is commonly used to obtain common salt from sea water.

• Evaporation

• Filtration

• Crystallisation

• Centrifugation

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

• Sublimation

• Sedimentation

• Filtration

• Decantation

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

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

• handpicking

• threshing

• sieving

• winnowing

When is the solution saturated?

• No more salt can be dissolved in the amount of water we have taken

• Lot more salt can be added

• You have to add some sugar into the solution

• None of the above

The diagram shows the apparatus for separating soil and water. What are the labelled parts?

• A = distillate, B = filtrate
• A = filtrate, B = residue
• A = residue, B = filtrate
• A = residue, B = distillate