Question

Mention any two characteristics of a good soap that is used for washing clothes.

Mention the characteristics of a good soap used for washing clothes.

Answer 1

1. The colour of the soap should be clear and pale. Dark-coloured soaps contain impurities.
2. It should be hard to touch. Soaps that are soft to the touch contain excessive water. · Also, hardness should not be due to the presence of silicate, starch, etc.
3. On storage, white crystals should not appear on the soap surface. The formation of crystals indicates the presence of excess alkali, which may be harmful to the clothes as well as to the hands of the workers.
4. When broken (not cut), the soap should appear granular (not striated).