Question

when we heat a mixture of iron and sulphur for a short time and then move a magnet over it, the observation made is?

Answer 1

Answer:

Explanation:

When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S.Therefore, heating of mixture of iron and sulphur powder is a chemical change.