Phenol can be distinguished from ethanol by the reagent

The intermediate $X$,in the reaction shown below,is ..... .

Which of the following is picric acid?

When phenol is treated with bromine water,the white precipitate formed is

The electrophile involved in the Reimer-Tiemann reaction 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.