The final product of the given sequence is :

What is the color of the precipitate formed when aniline reacts with $HNO_2$ at low temperature,followed by treatment with an alkaline $\beta$-naphthol solution?

Identify the product $C$ in the series:
$CH_3CN$ $\xrightarrow{Na/C_2H_5OH} A$ $\xrightarrow{HNO_2} B$ $\xrightarrow{copper, 573 \ K} C$

The major product formed in the following reaction is:

Explain the acylation of ethanamine and aniline.

Identify the products $y$ and $x$ in the following reaction sequence:
$C_6H_5CONH_2 \xrightarrow{NaOBr} y$
$C_6H_5CONH_2 \xrightarrow[(ii) H_3O^+]{(i) C_6H_5SO_2Cl / py, \Delta} x$