Separation of S...

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

A very large quantity of mixture contains tiny particles of three different substances X, Y and Z. They are of the same size, cubical in shape and yellow in colour. X particles are very heavy, insoluble, non-magnetic and contribute 50% of the mixture. Y particles are very light, insoluble, non-magnetic and contribute 40% of the mixture. And Z particles are actually iron pieces. Which of the following methods can separate X, Y and Z in the fastest manner?

Winnowing is useful only when:

Wheat flour can be separated from the wheat bran by:

Decantation can be used to separate:

How will you obtain common salt from sea water?

Which one of the following is not a term generally used to describe a solution?

To make a saturated solution, 90 g of NaCl is dissolved in 2000 g of water at 293 K. Find its concentration at this temperature by mass.

Evaporation followed by condensation occurs in:

The salt can be easily obtained from the salty water by the process of: