The soap molecule has a:

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 : 53 When a vegetable oil is treated with hydrogen in the presence of nickel (or palladium) catalyst, it forms a fat. This is an example of: 55 Chlorine reacts with saturated hydrocarbons at room temperature in the: 56 In a soap micelle, the soap molecules are arranged radially with: