The final product formed when $Methyl \ amine$ is treated with $NaNO_2$ and $HCl$ is

Select the compound which on treatment with nitrous acid liberates nitrogen.

Methyl isocyanide on hydrolysis gives

The product$(s)$ of the following reaction sequence is(are):
Aniline $\xrightarrow[\text{ii) } KBrO_3/HBr]{\text{i) Acetic anhydride/pyridine}}$ $\xrightarrow[\text{iv) } NaNO_2/HCl, 273-278 \ K]{\text{iii) } H_3O^+, \text{heat}}$ $\xrightarrow{\text{v) } Cu/HBr} \text{Product}$

The major product in the following reaction sequence is:

Assertion : Aniline is a better nucleophile than anilinium ion.
Reason : Anilinium ion has a positive charge.