Question

P is a mixture of iron filling and sulfur and q is the product obtained by heating the mixture and crushing it to fine powder on bringing a magnet over both p and q what will happen

Answer 1

X is a mixture of iron filings and sulphur and Y is a product obtained by heating the
mixture X and crushing it to a fine powder. On bringing a magnet over both X and Y
Rahul observed that:
(a) X and Y both are attracted. (b) X is attracted while Y is not.
(c) Y is attracted while X is not. (d) Both X and Y are not attracted
Answer
..........
Rahul observed X is attracted while Y is not. X is a mixture of iron and sulphur, and in a mixture the inherent properties of components are not lost. But when this mixture is heated then Iron and Sulphur react to form Iron Sulphide, which is a different compound. 

A compound will not exhibit properties of the constituent elements. Iron is magnetic. But, Sulphur and Iron Sulphide are non-magnetic. 

Hence only the iron from X is attracted.