The major product of the following reaction is :

For an elementary chemical reaction,



the expression for $${{d\left[ A \right]} \over {dt}}$$ is

What is the IUPAC name of the following compound ?

An aromatic compound 'A' having molecular formula C₇H₆O₂ on treating with aqueous ammonia and heating forms compound 'B'. The compound 'B' on reaction with molecular bromine and potassium hydroxide provides compound 'C' having molecular formula C₆H₇N.. The structure of 'A' is