Questions based on methods of preparation of carboxylic acids

Question based on methods of preparation of amines

Carboxyllic Acid

question based on Methods of preparation of the Alkyl halides

Questions based on chemical properties of Carboxylic acids

questions based on preparation of alcohols

Which of the following methods are used for the conversion of carboxylic acids into acid chlorides (RCOOHrarrRCOCl) ?

There are two step-up methods : (i) Grignard reagent and (ii) nitrile method, for the preparation of carboxylic acids from RX , Which method is suitable for the preparation of step-up carboxylic acid from the following RX ? Why ? Give the name of the acid also. (I) (II) (III) (IV) PhCI (V) (VI) (VII) (VIII) (IX) .