Question

What would you observe when a mixture of iron filings and sulphur powder is heated strongly?

Answer 1

Hint :When iron filings and sulphur powder are combined together, both qualities are retained. It means they haven't gone through any chemical changes. When this mixture is heated, a chemical reaction occurs, resulting in ferrous sulphide $ \left( {FeS} \right) $ .

Complete Step By Step Answer:
Iron sulphide is formed when a mixture of iron filings and sulphur powder is burned to a high temperature.
Sulphur's melting point is lower than that of iron. As a result, when we heat the iron filings and sulphur powder mixture, the sulphur melts first. The melted sulphur combines with the iron fillings in the mixture to generate the chemical compound iron sulphide, which is black in colour.
Chemical equation:
 $ Fe{\text{ }} + {\text{ }}S{\text{ }} = {\text{ }}FeS $

Additional Information:
Iron sulphide, also known as pyrite, is formed. It's known as "fool's gold" in nature because it usually occurs in association with gold deposits and has tricked many hopeful miners with its dazzling golden appearance.
Iron sulphide crystallises underground from hot, pressured water and can grow to be rather large cubic crystals. This one is around an inch in diameter, and while it's unusually perfect, it's not overly huge. It hasn't been chopped or polished, and the edges are razor sharp, just as it came out of the ground.

Note :
A chemical transformation occurs when a mixture of iron and sulphur powder is heated. Sulphur dioxide, an irritating, poisonous, and suffocating gas, can be produced by burning both solid and molten sulphur. The compound iron sulphide is formed by the exothermic reaction of two elements, iron and sulphur.