Compounds Containing Nitrogen

What is the order of $\text{p}K_b$ for the following molecules in an aqueous medium?

\(\text { What is the major product in the reaction sequence given below? }\)

\(\text { What are the products } \mathrm{N} \text { and } \mathrm{Q} \text { in the following reaction sequences? }\)

Benzamide is treated with $\mathrm{Br}_2$ and $\mathrm{NaOH}(\mathrm{aq})$ to form the product $X$, which is then reacted with $\mathrm{NaNO}_2$ and $\mathrm{HCl}(\mathrm{aq})$ at $0-5^{\circ} \mathrm{C}$ to form $Y$. $Y$ is immediately tre...