Question

Select the odd one

A good quality laundry soap will have

Options

• Natural perfume in them

• When broken the soap will appear granular

• The colour of the soap should be pale and clear

• It should be hard to touch

Answer 1

It should be hard to touch

Explanation:

The qualities of laundry soap can be determined in the following ways:

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. When broken (not cut), the soap should appear granular (not striated)
4. 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.