Question

Choose the appropriate option regarding the separation of a mixture of kerosene and water.

• A. Top layer - Kerosene
  Bottom layer - Water
• B. Top layer - Water
  Bottom layer - Kerosene
• C. Top layer - Kerosene
  Middle layer - Water
  Bottom layer - Kerosene
• D. Top layer - Water
  Middle layer - Kerosene
  Bottom layer - Water

Answer 1

The correct option is A Top layer - Kerosene

Bottom layer - Water
Kerosene oil and water form a mixture of immiscible liquids. When left undistubed, depending upon the densities of the liquid they form two separate layers. The liquid that has a lower density forms the top layer and the liquid that has a higher density forms the bottom layer.

In this case, kerosene has density of ${\text{820 kg/m}}^3$ and water has a density of ${\text{1000 kg/m}}^3$. So, kerosene forms the top layer and water forms the bottom layer.