$CH_3NH_2 + CHCl_3 + KOH \rightarrow$ Nitrogen containing compound $+ KCl + H_2O$. The nitrogen-containing compound is:

Consider the following reaction sequence and identify the correct option:

Which of the following structures represents a colourless substance?

When propionamide reacts with $Br_2$ in the presence of alkali the product is :

Identify $Y$ in the following reaction sequence:
$CH_3-CH(CH_3)-CH_2-CONH_2$ $\xrightarrow{KOBr(aq)} X$ $\xrightarrow{NaNO_2/HCl(aq)} Y$

$A$ hydrocarbon $A$ $(C_{4}H_{8})$ on reaction with $HCl$ gives a compound $B$ $(C_{4}H_{9}Cl)$ which on reaction with $1 \ mol$ of $NH_{3}$ gives compound $C$ $(C_{4}H_{11}N)$. On reacting with $NaNO_{2}$ and $HCl$ followed by treatment with water,compound $C$ yields an optically active compound $D$. The compound $D$ is