The correct procedure for heating a mixture of iron filings and sulphur powder is:
Important Questions on Is Matter Around Us Pure?
While separating the components of a mixture of sand, camphor and common salt, Mohan added water to the mixture in a beaker and stirred it well. He observed that component that has dissolved in water is:
Sample 'A' contains iron filings and sulphur powder, Sample 'B' is iron sulphide. Sample 'A' and 'B' are taken on a watch glass and a bar magnet is rolled over both.
You will observe that:
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
