Distillation

(a) What is fractional distillation ? What is the use of fractionating column in fractional distillation? (b) Draw a labelled diagram of the fractional distillation apparatus distillation apparatus used for separating a mixture of alcohol and water

Distilled water is

Phenol on distilling with zinc dust gives

Dioxane used as a solvent is obtained by distilling ………with…….

Which is distilled first ?