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प्रश्न
Explain why oil does not mix in water. However, oil and water become homogeneous if a sufficient quantity of detergent is added.
उत्तर
Oil and water are two immiscible liquids, which means both of them repel each other. But when we add detergent to a solution containing water and oil, the mixture becomes homogeneous. This happens because of the detergent molecule. The detergent molecules have two ends. One of its ends holds on to a water molecule and the other end holds on to the oil molecule. These opposing forces help in dissolving the oil in water and thus making a homogeneous mixture.
संबंधित प्रश्न
The substance that helps water to remove dirt from the surface of materials is called ______.
Synthetic detergents can be used in ______ water as well.
Make a list of detergents that you use.
What should be expected from detergent for delicate garments?
Answer the following question using the data given below:
Assertion: Detergents are more effective cleansing agents than soaps in hard water.
Reason: Calcium and magnesium salts of detergents are water-soluble.
Detergents can be used for washing of clothes ______.
“Detergents are now commonly used for laundry purposes.” Keeping this in mind, state any five advantages of using detergents over soaps in laundering of clothes.
Detergent does not form scum in hard water so its effectiveness reduces in hard water.
Select the odd one
The different kinds of detergents are
What are the advantages of using detergents over soaps?
