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ar Malvanicar | GRADE-5_EVS_EVLN-1_24-05-2021
Question: 15 of 17
QID: 310 11 Mark]
Two liquids that can be mixed together but separate shortly after are said to be:
A.
Immiscible liquids
B.
Insoluble liquids
C.
Miscible liquids
D.
Soluble liquids
Answers
Answer:
An emulsion is a mixture of two or more liquids that are normally immiscible.For example, milk is an emulsion. It is a colloidal solution of liquid fat in water. An emulsion is classified into oil in water type emulsion and water in oil type emulsion according to the classification of dispersed phase and dispersed medium.
Answer:
Immiscible liquids are those which do not mix completely. Hence a mixture of two immiscible liquids is not homogeneous but heterogeneous. For example benzene and water.
Two immiscible liquids can be separated from each other by using a separating funnel. This method of separation is based on the difference in densities of the liquids.
Example--->
Consider a mixture of kerosene oil and water. Pour this mixture into a separating funnel from the top. Close the mouth of the funnel and shake the mixture vigorously. Then allow it to settle for a while. You will notice that oil being less dense floats over water. On the other hand, water makes up the lower level as it is denser. Now, open the stopcock. Water will first come out. Collect it n a beaker. Close the stopcock when all the water has eluted. In this way the mixture of kerosene oil and water gets separated. The following diagram illustrates this process.
Mixtures of any two or more immiscible liquids can be separated using this technique.
hope this helps you
