Question

Classify the following as homogeneous and heterogeneous mixture:

sand-sugar

Answer 1

Mixture: When two or more substances (elements or compounds or an element and compound) are mixed in any proportion.

Homogeneous mixture: A mixture that exhibits uniformity in its composition and properties throughout its mass is known as a homogeneous mixture.Example: Sodium chloride $\left(\mathrm{NaCl}\right)$ solution, Sugar $\left({\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}\right)$ solution etc.

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

Sand-Sugar $\left({\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}\right)$ mixture can be classified as a heterogeneous mixture.

• There is no uniformity in the composition as the particles of sand and sugar are not uniformly distributed throughout the mass of the mixture.
• At certain places, sand will be more than sugar and at other places, sugar might be more than sand.
• Also, there is a clear boundary of separation between the particles of sand and sugar.