Question

What is/are true about the final product (monosubstituted) formed in the following reaction?

• A. It forms a salt with $NaOH$
• B. It evolves $C{O}_2$ when treated with $NaHC{O}_3$
• C. It is more acidic than acetylene
• D. It gives a coloured compound when treated with neutral $FeC{l}_3$ solution

Answer 1

Answer: (A), (C), (D)

It gives a coloured compound when treated with neutral $FeC{l}_3$ solution

Given reaction is the synthesis of phenol.

(a) It forms sodium phenoxide (salt) when treated with $NaOH$.
$Ph-OH+NaOH\to Ph-O^{-}N{a}^{+}+H_{2}O$

(b) It does not react with $NaHC{O}_3$.

(c) It is more acidic than acetylene since it has an ionisable hydrogen.

(d) It gives a violet colour complex when treated with neutral $FeC{l}_3$ which is a test to distinguish phenols.