Compounds Containing Nitrogen

$ \text { The complete reaction sequence is as follows } $

Option B : Proline

Explanation :

Ninhydrin is a chemical reagent commonly used to detect amino acids, peptides, and proteins. While most amino acids react with ninhydrin to give a purple-blue color, Proline and hydroxyproline are exceptions. These two amino acids react with ninhydrin to give a yellow color instead. This is because proline is a secondary amino acid, meaning its amino group is a part of a ring structure, which alters its reactivity compared to primary amino acids.

Epoxy ethane reacts with ammonia forming a mixture of mono, di-, tri-ethanol amines, it presence of small amount of water as follows.

The given reactions take place as follows

The reaction take place as follows