Advertisements
Advertisements
प्रश्न
Explain the action of soap in removing an oily spot from a piece of cloth.
उत्तर
Cleansing action of soaps:
The oily spot present on clothes is organic in nature and insoluble in water. Therefore, it cannot be removed by only washing with water. When soap is dissolved in water, its hydrophobic ends attach themselves to the oily spot and remove it from the cloth. Then, the molecules of soap arrange themselves in the form of micelle and trap the dirt at the centre of the cluster. These micelles remain suspended in the water. Hence, the oily spots are easily rinsed away by water.
APPEARS IN
संबंधित प्रश्न
Why do soaps not form lather in hard water?
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
Which of the two is better for washing clothes when the water is hard: soap or detergent? Give reason for your answer.
What is a soap? Name one soap.
Explain why often coloured spots are formed on clothes during washing.
What are the two different types of molecules found in the soap?
The alkaline hydrolysis of fatty acids is termed as ______
Soaps are ester of which type of acids?
The soap molecule has a
Why do soaps not work effectively in hard water?
