Sodium phenoxide reacts with $CO_2$ at $400\,K$ and $4-7\,atm$ pressure to give

Compound '$B$' is

Which one of the following phenols does not give colour when condensed with phthalic anhydride in the presence of conc. $H_2SO_4$?

Assertion : Reimer-Tiemann reaction of phenol with $CCl_4$ in $NaOH$ at $340 \ K$ gives salicylic acid as the major product. Reason : The reaction occurs through intermediate formation of dichlorocarbene.

The major product formed in the following reaction is:

Which of the following conversions represents the Fries rearrangement?