How will you account for the acidic nature of carboxylic acid ?

How will you convert : Acetic acid into ethane

During the reaction of carboxylic acid with N_a HCO_3 .

How would you account for the following : The acidic strength of compounds increases in the order : PH_3< H_2S

How will you convert Phenol to Benzoic acid ?

How will you convert phenol to salicylic acid ?

How will you convert formic acid into formaldehyde ?

Why phenols are acidic in nature ?