When a bar magnet is brought closer to a mixture of iron filings and sulphur powder,iron particles stick to the magnet,whereas in the case of iron sulphide,no change is observed. When a mixture of iron and sulphur is added to carbon disulphide,sulphur dissolves,whereas in the case of iron sulphide,no change is observed. Justify the statement that the properties of a compound are different from its constituents,while a mixture shows the properties of its constituent elements using the example of iron and sulphur.

(N/A) $1$. $A$ mixture of iron filings and sulphur powder retains the individual properties of its constituents. Iron particles are attracted by a magnet,and sulphur is soluble in carbon disulphide $(CS_2)$. This demonstrates that the components in a mixture do not lose their identity.
$2$. Iron sulphide $(FeS)$ is a compound formed by the chemical reaction between iron and sulphur. In a compound,the constituent elements lose their original properties. Therefore,iron sulphide is not attracted by a magnet,and sulphur does not dissolve in carbon disulphide.
$3$. Thus,it is justified that a mixture exhibits the properties of its constituents,whereas a compound possesses entirely new properties different from its constituent elements.