Question

Give examples of the following: Solution of a liquid in liquid is
A ) alcohol in water
B ) milk
C ) smoke
D ) none of these

Answer 1

Hint: A solution is a homogeneous mixture of two chemically non reacting substances.
Solution of a liquid in liquid is the one in which solute and solvent both are in liquid state.

Complete step by step answer:
 In the solution, the solute can have either of three phases, solid liquid or gas. Similarly, the solvent can have any of these three phases, solid, liquid or gas.
Based on different physical states of solute and solvent, the solution is classified into nine categories. These are listed in the following types.

Physical state of solvent	Physical state of solute	Example
Gas	Gas	Air (a mixture of nitrogen, oxygen and trace amounts of other gases such as carbon dioxide)
Gas	Liquid	Humidity present in the air. Humidity represents vapors of water
Gas	Solid	Smoke contains carbon particles suspended in air
Liquid	Gas	Soda water is obtained when carbon dioxide gas is dissolved in water.
Liquid	Liquid	Two miscible liquids such as alcohol in water, acetone in water, hexane in pentane etc.
Liquid	Solid	Aqueous solutions of sugar or salt.
Solid	Gas	Hydrogen gas is adsorbed over platinum surface
Solid	Liquid	Amalgams are alloys of metals (such as zinc, gold etc) with mercury
Solid	Solid	Alloy of copper in gold.

Both alcohol and water are in liquid state. Alcohol is miscible with water. Hence, the mixture of alcohol and water is a homogeneous mixture. It is a mixture.

So, the correct answer is “Option A”.

Note: In water, intermolecular hydrogen bonds are formed. In alcohol also, intermolecular hydrogen bonds are formed. When alcohol is mixed with water, hydrogen bonds are formed between alcohol and water molecules. Thus, alcohol and water are miscible.