Question

Classify the following into homogeneous and heterogeneous matter:

Sugar

Answer 1

Sugar is a homogeneous matter.

• This is because Sugar or Sucrose $\left({\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}\right)$ has uniform composition and properties throughout.
• To be specific, it is a pure substance in homogeneous matter category as it consists of only ${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}$particles.

Homogeneous matter: Any substance that exhibit uniformity in its composition and properties throughout its mass is known as a homogeneous matter. Homogeneous matter can be further divided into two parts i.e.;

• Pure substances: When only one type of constituent particles are present in the substance. Example: Substances like Copper $\left(\mathrm{Cu}\right)$, Iron $\left(\mathrm{Fe}\right)$ etc and substances like Water $\left({\mathrm{H}}_2\mathrm{O}\right)$, Hydrochloric acid $\left(\mathrm{HCl}\right)$
• Homogeneous mixture: When more than one type of constituent particles are present in a substance. Example: A solution of salt and water, tea, etc.

Heterogeneous matter: Any substance that does not exhibit uniformity in its composition and properties throughout its mass is known as a heterogeneous matter. Example: Muddy water, Sand and Iron $\left(\mathrm{Fe}\right)$ nails combined together.