The Mendius reaction is involved in the reduction of which of the following?

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?

Identify the product obtained when $RCN$ is treated with sodium and alcohol.

In acid medium,nitrobenzene is reduced to aniline as shown in the reaction:
$C_6H_5-NO_2 + 6[H] \to C_6H_5-NH_2 + 2H_2O$
The reducing agent used in this reaction is $......$.

Gabriel phthalimide synthesis is used in the preparation of primary amines from phthalimide. Which of the following reagents is not used during the process?

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