3 Tests for organic functional groups

Please refer to the respective topics.

(i) alkenes by reaction with bromine

(ii) haloalkanes by reaction with aqueous silver nitrate in ethanol

(iii) phenols by weak acidity but no reaction with CO3 2–

(iv) carbonyl compounds by reaction with 2,4- DNP

(v) aldehydes by reaction with Tollens’ reagent

(vi) primary and secondary alcohols and aldehydes by reaction with acidified dichromate

(vii) carboxylic acids by reaction with CO3 2–