In oil and water mixture what is the supernatant liquid or there are no supernatant liquid

Dear Student,

Oil and water are made up of different kinds of atoms. Their properties are totally different from each other. And there is a principle which says 'Like dissolve like' , since oil and water are two unlike liquids so they do not get dissolve on mixing.  
Oil is a supernatant liquid. The liquid that lies above or on the top of the sediment or precipitated insoluble material is called supernatant. It is obtained after centrifugation. 

​​​​​​​Regards

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