Question

An organic compound A having molecular formula C6H6O give a characreristics colour with aq FeCl3." A" on treating with CO2 and NaOH at 400K under pressure give "B" wch on acidification give compound "C". The compound "C" react with acetyl chloride to give "D" wch is popular pain killer. DEDUCE A,B,C,D.

Answer 1

phenol as it only react with fecl3 to give violet
colour....and other as mentioned in photograph

Answer 2

Hey dear,

● Answer -
A => Phenol
B => Sodium salicylate
C => Salicylic acid
D => Aspirin

[Refer to image for structures]

● Explaination -
Phenol (A) reacts with FeCl3 to give violet coloured complex.
C6H5OH + FeCl3 ---> C6H5OFeCl2 + HCl

Phenol (A) reacts alkaline CO2 to give sodium salicylate (B).
C6H5OH + CO2 + NaOH ---> HOC6H4COONa + H2O

Sodium salicylate (B) on acidification gives salicylic acid (C).
HOC6H4COONa + H+ ---> HOC6H4COOH

Salicylic acid (C) reacts with acetylchloride to give aspirin (D).
HOC6H4COOH + C2H5Cl ---> (COCH3)C6H4COOH

Hope this helps you...