Match List-I with List-II
                    List - I                                                            List - II

• A : This is the Reimer-Tiemann reaction. Phenol reacts with chloroform in the presence of sodium hydroxide to introduce an aldehyde group ($$-\text{CHO}$$) at the ortho-position, forming salicylaldehyde.
• B : Phenol undergoes reduction when heated with zinc dust, which completely removes the hydroxyl group ($$-\text{OH}$$) to yield benzene.
• C ): Phenol undergoes oxidation with acidified sodium dichromate (chromic acid) to form a conjugated diketone known as $$p$$-benzoquinone.
• D ): This is a bromination reaction under mild, non-polar conditions. At a low temperature in carbon disulfide ($$\text{CS}_2$$), phenol is selectively monobrominated to give $$p$$-bromophenol as the major product.

Matching these combinations:

• A - IV, B - III, C - II, D - I

Correct Option: A