$A$ miscible mixture of $C_6H_6 + CHCl_3$ can be separated by

The best method for the separation of naphthalene and benzoic acid from their mixture is

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

Which of the following is not an element?

Define mixture and its types.

Explain the concept of a compound.