Salicylaldehyde can be prepared from

The increasing order of the rate of reaction with $Br_2 / AlCl_3$ is:

Given below are two statements.
Statement $I$: Phenols are weakly acidic.
Statement $II$: Therefore they are freely soluble in $NaOH$ solution and are weaker acids than alcohols and water.
Choose the most appropriate option.

Phenol is treated with bromine water and shaken well. The white precipitate formed during the process is

In the Liebermann’s nitroso reaction,the changes in the colour of phenol occur as:

Which of the following is the most acidic compound?