How can you separate alumina from silica in a bauxite ore associated with silica? Give equations, if any.

How can you separate camphor from a mixture of caffeine and camphor?

How can you differentiate true fruits from false fruits?

How do you separate the components from a mixture of lodine, Iron filling and salt.

When a metal is to be extracted from its ore, if the gangue associated with the ore is silica, then

Aluminium is prepared industrially by Hall- Heroult process. Various steps in the concentration of ore are given below. Write them in the correct order. i)The precipitate formed is separated, washed and strongly heated to get alumina. ii) Crushed bauxite is leached with hot sodium hydroxide solution. iii) Impurities are removed from the sodium aluminate solution by filtration. iv) Solution is diluted after adding a little aluminium hydroxide, to precipitate aluminium hydroxide .

How can you prepare 'Cl', from 'HCl' and HCl' from 'Cl2' ? Write reactions only.

Starting from borax how will you prepare boric acid? (Write the chemical equation).