While cooking, if the bottom of the cooking utensil is getting blackened on the outside, it means that :

49 Describe the structure of a soap molecule with the help of a diagram. 49 Explain the cleansing action of soap. Draw diagrams to illustrate your answer. 51 When ethanol is heated with alkaline potassium permanganate solution, it gets converted into ethanoic acid. In this reaction, alkaline potassium permanganate acts as : 52 When ethanol is heated with concentrated sulphuric acid at 170 �C, it gets converted into ethene. In this reaction, concentrated sulphuric acid acts as :