1.

Take some powdered iron filings and mix it with sulphur. (i) Divide the mixture into two equal halves. (ii) Keep the first half of the mixture as it is, but best the second half of the mixture. (iii) You will geta grey brittle compound

Answer»

Solution :Iron + Sulphur `overset(DELTA)(rarr)` Iron sulphide
We cannot SEPARATE iron from iron sulphide. So, it is a compound, whereas Iron and sulphur are mixtures. We can separate it by magnetic SEPARATION method.


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