Solubility is an important characteristic of substances. Some materials which are soluble in water may not be soluble in another liquid. When a substance dissolves completely in a liquid, then the combination is called a solution. The substance which dissolves is called the solute. The liquid which dissolves it, is called the solvent.If two liquids mix together completely, then they are called miscible otherwise they are immiscible.
Which of the following pairs will make separate layers on mixing?

Options

A. Milk and water
B. Alcohol and water
C. Oil and water
D. Sugar syrup and water

Answer

C

Explanation

Oil and water separate out in two layers while all other given liquids are miscible.