What is the decreasing order of basicity of 1^o , 2^o and 3^o ethyl amines and ammonia ?

Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of sodium nitrite in presence of dilute hydrochloric acid.  The compound so formed is converted into a tetrafluoroborate which is subsequently heated.  The final product is

Indicate which nitrogen compound amongst the following would undergo Hofmann reaction ?

The decomposition of organic compounds, in the presence of oxygen and without the development of odoriferous substances, is called

Aniline when diazotised in cold and then treated with dimethyl aniline, gives a coloured product.  Its structure would be

For carbylamine reaction, we need hot alcoholic KOH and

Aniline is an activated system for electrophilic substitution.  The compound formed on heating aniline with acetic anhydride is

Which one of the following on reduction with LiAIH₄ yields a secondary amine ?

Consider the following sequence of reactions

Compound

The compound [A] is

A reagent suitable for the determination of N-terminal residue of a peptide is