Question

The separation of an emulsion into its constituent liquids is known as:

• A. emulsification
• B. protection of colloid
• C. coagulation
• D. demulsification

Answer 1

The correct option is D demulsification

• Demulsification is the breaking of a crude oil emulsion into oil and water phases.
  
• Demulsification is used to separate various mixtures like water in oil and oil in water etc.
• It completely separates the constituent liquids and hence is the reverse of emulsification.