Question 2 :
A primary amine {B), on treatment with a solution of $AuCl_{3}$ in conc. $HCl$ yields a compound whose formula would be?

Question 5 :
The final product (IV) obtained in the reaction sequence :<br/>Toluene&#160; &#160; &#160;$\xrightarrow [ 1.KMnO_{ 4 }/{ OH }^{ - } ]{ { 2.H }^{ + } } I\quad \overset { SOC{ l }_{ 2 }\quad \quad&#160; }{ \longrightarrow&#160; } II\quad \overset { N{ H }_{ 3\quad \quad \quad \quad&#160; &#160; } }{ \longrightarrow III\quad&#160; } \overset { { OBr }^{ - } }{ \longrightarrow&#160; } \quad IV$<br/>is :

Question 7 :
When methyl iodide is heated with ammonia, the product obtained is

Question 10 :
In order to prepare a 1 amine from an alkyl halide with simultaneous addition of one $CH_2$ group in the carbon chain, the reagent used as source of nitrogen is: