Question

Explain compound and mixture by taking an example of Iron and Sulphur.

Answer 1

Mixture: A mixture is a substance composed of two or more matter that can be separated with the help of physical methods.

Understanding compound and mixture:

Things that are required: Iron filings, Sulphur, Magnet, Test tube, Burner

Creating Mixture:

• Take some iron filings and sulphur in powder form.
• Stir the two elements to form a mixture.
• These two can be separated with the help of a magnet, as iron has a magnetic character.

Compound: A compound is a substance created by when two or more chemical elements are bound together.

Understanding compound:

Things that are required: Iron filings, Sulphur, Magnet, Test tube, Burner

Creating compound:

• The mixture is on the burner.
• As the mixture gets heated, it starts to glow.
• Iron filings and sulphur react to form iron sulphide.
• Reaction involved : $\underset{\mathrm{Iron}}{\mathrm{Fe}}+\underset{\mathrm{Sulphur}}{\mathrm{S}}\to \underset{\mathrm{Iron}\mathrm{sulphide}}{\mathrm{FeS}}$

Thus, Iron and Sulphur can exist both as a mixture and in compound form.