Question

The mixtures having more than ______ components can be separated by more than one method.
A. Two
B. Three
C. Four
D. Five

Answer 1

In chemistry, a mixture is a material made up of two or more different substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.

Complete step by step answer:
Mixtures having more than 2 components can be separated by more than one method.
Example: Solution of salt and sand can be separated by sedimentation, then filtration, and then evaporation.
Sedimentation: Sedimentation is a simple, physical pretreatment of water prior to application of other purification treatments such as filtration and disinfection. It removes undesirable small particulate suspended matter (sand, silt, and clay) and some biological contaminants from water under the influence of gravity. The longer the water is held undisturbed, the more the suspended solids and pathogens will settle to the bottom of the container. Adding coagulants can accelerate the sedimentation process. Three common chemicals used for this purpose are aluminum sulfate, polyaluminium chloride, and ferric sulfate.
Filtration: Filtration is technically defined as the process of separating suspended solid matter from a liquid, by causing the latter to pass through the pores of a membrane, called a filter.
Evaporation: Evaporation is the process by which water changes from a liquid to a gas or vapor. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor.

So, the correct answer is Option B.

Note: A separation process is a method that converts a mixture or solution of chemical substances into two or more distinct product mixtures. At least one of the results of the separation is enriched in one or more of the source mixture's constituents. In some cases, a separation may fully divide the mixture into pure constituents. Separations exploit differences in chemical properties or physical properties between the constituents of a mixture.