Identify the mixture from the following

Which of the following mixtures will be the most difficult to separate ?

A mixture contains two solids A and B. Solid A is light in weight while solid B is very heavy. Their sizes are almost same. Here, A is the unwanted component. To get pure solid B, which separation method would you suggest ?

A pure substance is made up of

Choose the substance that shows sublimation

You can use decantation to separate

The following property is used to find the purity of a substance

The method that is used to separate water particles from cloths while drying in washing machines is

Winnowing is useful only when

To separate ammonium chloride from common salt, we use