CHEMISTRY CBSE CLASS X
Soaps and Detergents
Detergent – Any substance which has cleansing action in water.
Sodium or potassium salt of a long chain carboxylic acid( fatty acid) which has cleansing properties in water. It has a large non-ionic hydrocarbon group and an ionic group , COONa.
Sodium Stearate – C17H35COONa
Sodium Palmitate – C15H31COONa
Manufacture of soap
Soap is made from animal fat or vegetable oils which when heated with sodium hydroxide solution ( caustic soda solution) , split to form sodium salt of higher fatty acid ( soap) and glycerol.
The process of making soap by the hydrolysis of fats and oils with alkalis .
Structure of a Soap Molecule
A soap molecule is made up of 2 parts : a long hydrocarbon and a short ionic part .
CBSE Important Questions Class X Chemistry By : Mrs. Kritika Bhola
Submitted By Mrs. Kritika Bhola