51. Synthetic detergents are prepared from A.Potassium salts of higher fatty-acids B.Sodium salts of higher fattyacids C.Hydrocarbons of petroleum D.Glycerides
Answer: Option C Solution: Synthetic detergents are prepared from hydrocarbons of petroleum. They are sodium salts of a long chain benzene sulphonic acids or sodium salts of long chain alkyl hydrogen sulphates. Calcium and magnesium salts of detergents are soluble in water. Therefore cleansing action of detergents remain unaffected in hard water.
