The reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces aldehyde −CHOfunctional group and hydroxy group at -ortho position. The reaction is known as the Reimer Tiemann reaction.
Reimer Tiemann reaction:

NEET UG 2015 — Chemistry Organic Chemistry
The functional group which is formed when Phenol is made to react with Chloroform in the presence of dilute Sodium hydroxide
Held on 30 Apr 2015 · Verified 9 Jul 2026.
–CH2Cl
−COOH
−CHCl2
−CHO
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
Which of the following is a reducing sugar?
Markovnikov's rule is applicable to:
Match List-I with List-II $\begin{array}{|l|l|l|l|}\hline & \text{List-I (Mixture)} & & \text{List-II (Method of Separation)} \\\hline A. & \mathrm{CHCl}_3+\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2 & I. & \text{Distillation under reduced pressure} \\\hline B. & \text{Crude oil in petroleum industry} & II. & \text{Steam distillation} \\\hline C. & \text{Glycerol from spent-lye} & III. & \text{Fractional distillation} \\\hline D. & \text{Aniline-water} & IV. & \text{Simple distillation} \\\hline\end{array}$ Choose the correct answer from the options given below :-
The major product of the following reaction is 
Predict the major product ' P ' in the following sequence of reactions- 
Work through every NEET UG Organic Chemistry PYQ, year by year.