Use simple chemical tests to differentiate between each member of the following pairs of compounds
(a) n - Propylalcohol and phenol
( b) Phenol and Benzoic acid

Explanation

(a) Phenol will dissolve in aqueous NaOH. While propanol is insoluble in aqueous NaOH Phenol also gives voilet coloureation with `FeCI_(3)`
( b) Benzoic and evolves `CO_(2)` gas with aqueous `NaHCO_(3)` while phenol does no give `CO_(2)` with aqueous