Question

.A substance which is formed on heating iron filings with sulphur powder.

Answer 1

When iron filings and sulphur powder are combined and heated, a chemical reaction occurs, resulting in ferrous sulphide $\mathrm{FeS}$, it's a new compound formed. As a result, heating a powdered iron and sulphur combination results in a chemical change.

The chemical reaction is as follows:

$\underset{\mathrm{Iron}}{\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{Sulphide}}{\mathrm{S}\left(\mathrm{s}\right)}\to \underset{\mathrm{Sulphide}}{\underset{\mathrm{Ferrous}}{\mathrm{FeS}\left(\mathrm{s}\right)}}$

As a result, heating a powdered iron and sulphur combination results in a chemical change.

• Therefore,$\mathrm{FeS}$formed on heating iron filings with sulphur powder.