Primary amine gives soluble compound.
The secondary and tertiary amines gives insoluble compounds.
The secondary amine reacts with benzenesulfonyl chloride to give insoluble compound which is insoluble in alkali.





$PhC{{O}_{2}}H\xrightarrow[2.\,N{{H}_{3}}]{1.\,PC{{l}_{5}}}A\xrightarrow[2.\,{{H}_{2}}/Ni]{1.\,{{P}_{4}}{{O}_{10}}.heat}B.$ અંતિમ નીપજ $(B)$ શું હશે ?
