Indicate if the following pairs of compounds could be separated via liquid-liquid extraction. first, draw the structures of the compounds, next determine whether they are acids or bases or neutral. finally, look up their pka (or pkb) values and indicate which aqueous solution would separate them or if they are inseparable. assume that you can utilize aqueous hcl, naoh, or nahco3 for your extractions. for each case that will not work, give the reason. you don't have to draw structure, just explain if they are able to be separated or not and with what and why.1. picric acid and phenol2. salicyclic acid and phenol3. triethylamine and diethylamine4. 3-nitrobenzoic acid and 2-nitrobenzoic acid5. benzylamine and aniline