Question

How will you separate a mixture of iron filings and sulphur powder without using carbon disulphide?

Answer 1

Take a magnet and pass it through the mixture, in which case the iron filings will stick to the magnet, while the sulfur does not. Likely some of the sulfur granules will get mixed up with the iron filings and trapped with them — so that this process only makes a partial separation, giving a pile of sulfur with less iron, and the second pile of iron filings with less sulfur. Thus one would need to repeat the process on each pile, probably a few times till the separation was complete.