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

When aniline reacts with oil of bitter almonds (C₆H₅CHO) condensation takes place and benzal derivative is formed.  This is known as

Predict the product,

Which of the following is more basic than aniline ?

The final product C, obtained in this reaction

would be

In a reaction of aniline a coloured products C was obtained.

The structure of C would be

For carbylamine reaction, we need hot alcoholic KOH and

Phenyl isocyanides are prepared from which of the following reaction ?

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