Phenols — Prelims Questions

Which of the following compounds is most acidic?

Phenol reacts with $\text{CHCl}_3$ and $\text{NaOH}$ at 340 K to form salicylaldehyde. This reaction is known as:

What is the major product formed when phenol reacts with bromine water at room temperature?

Which of the following reagents would you use to convert phenol to benzene?

Which of the following statements about phenol is INCORRECT?

Identify the product 'X' in the following reaction sequence: Benzene $\xrightarrow{\text{oleum}}$ A $\xrightarrow{\text{NaOH, heat}}$ B $\xrightarrow{\text{H}^+}$ X