Question

List the disadvantage of hard water.

Answer 1

Hard water

• Water that does not give lather with soap is called hard water.
• The presence of salts of $\mathrm{Calcium}\left(\mathrm{Ca}\right)$ and $\mathrm{Magnesium}\left(\mathrm{Mg}\right)$ is the reason behind its hardness

Disadvantages of using hard water are:

1. Hard water is not useful for washing clothes as it is difficult to form lather with soap.
2. Using hard water for washing Can cause clothing to lose its colors and a grey, dull appearance may occur.
3. Hard water blocks the water pipes because of the formation of layers of Carbonates $\mathrm{Calcium}\left(\mathrm{Ca}\right)$ and $\mathrm{Magnesium}\left(\mathrm{Mg}\right)$
4. Wasting the soap will happen due to the formation of scum.
5. Hard water can contribute to dry skin and hair in humans.

So, these are the disadvantages of hard water.