On the basis of which physical property does the separation of different fractions in the fractional distillation technique take place?

Give the technique for the separation of the following:
$(i)$ Mixture of sugar and sand
$(ii)$ Mixture of kerosene and water
$(iii)$ Mixture of benzene and common salt
$(iv)$ Mixture of liquids with boiling points $356 \, K$ and $365 \, K$
$(v)$ Mixture of aniline and camphor

$A$ mixture of $ZnCl_2$ and $PbCl_2$ can be separated by

$A$ mixture of $NH_4Cl$ and $NaCl$ can be separated by

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 :

What is sublimation? Give its uses and examples.