| Direction: Q. 16 to 20 |
| Read the following and answer questions from [16] to [20]. |
| A mixture is composed of two or more types of matter that can be present in different amounts. Mixtures are either homogeneous or heterogeneous. Homogeneous mixtures are uniform in composition but heterogeneous mixtures are not uniform in composition. |
| Different methods of separation are used to get individual components from a mixture. |
| Separation makes it possible to study and use the individual components of mixture. Heterogeneous mixtures can be separated into their respective constitutents by simple physical methods like hand picking, sieving filtration that we use in our day-to-day life. |
| Sometimes special techniques have to be used for the separation of the components of a mixture for examples, distillation, centrifugation, chromatography etc. |
A) maintain equal composition of substance
B) obtain a pure sample of a substance
C) make it homogeneous mixture
D) AII of the above
Correct Answer: D
Solution :
[d] Separation of components of a mixture is done to obtain purity of a substance and remove undesirable components.
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