Question

how can we seperate a mixture of two visible liquids. Explain with an example​

Answer 1

Answer:

>> Fractional distillation (To separate the mixture of miscible liquid X having lower boiling point and miscible liquid Y with higher boiling point )

>> Technique

>> Mixture X + Y is kept in a distillation flask A attached with a fractionating column having glass beads.

· The flask is then carefully heated.  

· The mixture first evaporates and later gets condensed. The glass beads present in the fractional column provides larger surface area for the vapours to cool down.  

· This technique is used to separate the mixtures having their temperature difference less than 30oC.  

>> Separation of Compounds

· Liquid with the higher boiling point Y remains in the flask A after condensation.  

· Liquid with the lower boiling point X gets collected in the flask B after condensation.  

>> Example: Benzene + Toluene ,

                     Water + Carbon tetrachloride

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