Hofmann's hypobromite reaction affords a method of

Starting from propanoic acid,the following reactions were carried out: $CH_3-CH_2-COOH$ $\xrightarrow{SOCl_2} [X]$ $\xrightarrow[\Delta]{NH_3} [Y]$ $\xrightarrow[KOH]{Br_2} [Z]$. Product $[Z]$ will be?

The major product is:

Phthalimide is made to undergo the following sequence of reactions. Total number of $\pi$ bonds present in product '$P$' is/are:

Identify the end product $(B)$ containing nitrogen in the following reaction sequence:

In a set of reactions,$m$-bromobenzoic acid gives a product $D$. Identify the product $D$.