Smoke and fog both are aerosols. In what way are they different?

Enumerate any two differences between simple distillation and fractional distillation.

Define a solution. Give an example of $(i)$ gas in liquid solution $(ii)$ gas in gas solution.

Can we separate alcohol dissolved in water by using a separating funnel? If yes,then describe the procedure. If not,explain.

Write your observations when the following processes take place:
$(a)$ An aqueous solution of sugar is heated to dryness.
$(b)$ $A$ saturated solution of potassium chloride prepared at $60^\circ C$ is allowed to cool at room temperature.
$(c)$ $A$ mixture of iron filings and sulphur powder is heated strongly.
$(d)$ $A$ beam of light is passed through a colloidal solution.
$(e)$ $Dil. HCl$ is added to the mixture of iron and sulphur.

$A$ mixture of sulphur and carbon disulphide is