JEE Advanced levelSingle correct optionDifficulty 3 of 3sc213
An emulsion mixes freely with kerosene but forms two separate layers when shaken with water. A water-soluble dye added to it colours only small droplets. The emulsion is:
Aoil in water
Ba gel
Can oil-in-water emulsion that has been diluted
Dwater in oil
Answer: D
Miscibility with the oil (kerosene) and not with water shows that oil is the continuous phase. A water-soluble dye colouring only small droplets shows that water is the dispersed phase. The emulsion is water in oil.