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14. Describe and illustrate with an example, adetergent. All India 2012 |
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Answer» Detergents are ammonium or sulphonate salts of long-chain carboxylic acids. They do not react with calcium and magnesium salts present in the water and give good lather. Detergents are often preferred over soap as they are more effective at cleaning and have a wider range of uses. Detergents can be used in hard water also because they react less to minerals in water and do not leave any residue. Detergent when dissolved in water form micelle. These micelles help in the cleansing action of detergent. The cleansing action of detergent is very much similar to that of soap.The only difference is that detergents work with hard water also.It does not react with Ca and Mg salts and hence do not form scum.And form a large amount of lather. Examples:- tide , surf |
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