To separate a mixture of iron filings, sulphur powder and iron sulphide, which sequence of methods should be used? 

A mixture contains iodine, ammonium chloride and sand. Only iodine and ammonium chloride sublime. Only iodine dissolves in carbon tetrachloride.

How will you separate the three components? Sequence of steps will be:

A mixture of ammonium chloride and sodium chloride is heated in the apparatus as shown below:

After the experiment, ammonium chloride will be obtained in the