$A$ mixture of sand and iodine can be separated by

Name a suitable technique for the separation of the components from a mixture of calcium sulphate and camphor.

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

Which element exists as a solid at $25\,^{\circ}C$ and $1$ atmospheric pressure among the following?

What are the fundamental components of matter?