What is the principle of distillation?

Suggest a method to separate a mixture of acetone and ethanol.

Which of the following processes occurs in the reaction given below $C_{(graphite)} \longrightarrow C_{(g)}$?

In a closed container,there is a mixture of $SO_2$,$CO_2$,and $O_2$ gases. Which sequence of reagents can be helpful to separate them?
$(I)$ Limewater
$(II)$ Acidified potassium dichromate
$(III)$ Alkaline pyrogallol

Given below are two statements :
Statement-$I$: Sublimation is used for the separation and purification of compounds with low melting point.
Statement-$II$: The boiling point of a liquid increases as the external pressure is reduced.
In the light of the above statements, choose the correct answer from the options given below :

Write down the properties of matter.