Synthetic detergents are prepared from __________.
hydrocarbons of petroleum
The correct answer is (3) hydrocarbons of petroleum.
Synthetic detergents are not derived from natural sources like fats and oils as are soaps. Instead, they are produced from petrochemicals, specifically hydrocarbons obtained from petroleum. The process involves a series of chemical reactions that convert these hydrocarbons into detergent molecules. These molecules have a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail, allowing them to effectively remove dirt and grime. Soaps, on the other hand, are salts of higher fatty acids (options 1 and 2), typically derived from animal or vegetable fats. Glycerides (option 4) are esters of glycerol and fatty acids, which are components of fats and oils, not the primary source of synthetic detergents.
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