Regarding Phenol correct statement (s) is / are

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Ester product is formed in Schotten-–Baumann reaction of phenol

Phenol gives violet coloured ${[F e {(O C_{6} H_{5})}_{6}]}^{- 3}$ complex on reaction with neutral $F e C l_{3}$

Phenol gives Benzo quinone on reaction with $K_{2} S_{2} O_{8}$

Phenol gives deep red coloured compounds first in Liebermann nitroso reaction which turns blue on reaction

answer is A, B, D.

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Detailed Solution

In Schotten-–Baumann reaction, an aromatic acid chloride reacts with phenols in the presence of a base such as NaOH to form phenyl benzoate.

Phenol gives 1,4 –dihydroxy benzene on reaction with $K_{2} S_{2} O_{8}$

In lieber mann’s nitroso test first deep blue compound is formed which turns red.

It should be noted that Liebermann's nitroso reaction is a test that is given only by secondary (2^∘) aliphatic or aromatic amines. Upon treatment with nitric acid (HNO₃), the secondary (2^∘) aliphatic or aromatic amine is converted into a nitroso amine. This nitroso amine, upon warming with phenol and concentrated sulfuric acid (H₂SO₄) forms a red or brown color which first changes to blue, and then to green.
Upon dilution, the color changes to red, and upon further treatment with alkali, the color changes to violet or greenish-blue.

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