Question
A mixture containing the following four compounds is extracted with $$1M\,HCl.$$ The compound that goes to aqueous layer is :
A mixture containing the following four compounds is extracted with $$1M\,HCl.$$ The compound that goes to aqueous layer is :
A.
$$(I)$$
B.
$$(II)$$
C.
$$(III)$$
D.
$$(IV)$$
Answer :
$$(II)$$
Solution :
When the given mixture is shaken with $$1\,M\,HCl,$$ amine get protonated and becomes cation $$\left( {RNH_2^ \oplus } \right),$$ which does not dissolve in organic solvent but usually dissolve in $${H_2}O$$ due to its charge. So, shaking with aqueous $$HCl$$ will pull amines into the aqueous phase and leave all other compounds in organic layer.
When the given mixture is shaken with $$1\,M\,HCl,$$ amine get protonated and becomes cation $$\left( {RNH_2^ \oplus } \right),$$ which does not dissolve in organic solvent but usually dissolve in $${H_2}O$$ due to its charge. So, shaking with aqueous $$HCl$$ will pull amines into the aqueous phase and leave all other compounds in organic layer.