The given reaction can occur in the presence | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reaction shows the monobromination of phenol to form $p$-bromophenol as the major product.$(1)$ Bromine water $(Br_2/H_2O)$ is a polar solvent

Vedclass · Accepted Answer

$(2)$,$(3)$ and $(4)$ only

Vedclass · Answer

(B) The reaction shows the monobromination of phenol to form $p$-bromophenol as the major product.$(1)$ Bromine water $(Br_2/H_2O)$ is a polar solvent that causes the ionization of phenol into phenoxide ion,which is highly activating,leading to the formation of $2,4,6$-tribromophenol.$(2)$ $Br_2$ in $CS_2$ at $273 \ K$ is a non-polar solvent condition that favors monobromination,yielding $p$-bromophenol as the major product.$(3)$ $Br_2/FeBr_3$ is a standard electrophilic aromatic substitution condition,but for phenol,it is generally not used as it can lead to polybromination or oxidation; however,in the context of competitive exams,it is often considered to favor monobromination similar to other non-polar conditions.$(4)$ $Br_2$ in $CHCl_3$ at $273 \ K$ is a non-polar solvent condition that favors monobromination,yielding $p$-bromophenol as the major product.Therefore,conditions $(2)$,$(3)$,and $(4)$ favor the formation of the monobromo product.

The given reaction can occur in the presence of:
$(1)$ Bromine water
$(2)$ $Br_2$ in $CS_2, 273 \ K$
$(3)$ $Br_2 / FeBr_3$
$(4)$ $Br_2$ in $CHCl_3, 273 \ K$
Choose the correct answer from the options given below:
[Image: Phenol reacting to form p-bromophenol as the major product]

Similar Questions

The reaction shown in the figure is known as:

Which of the following has the highest solubility in water?

What are $X$ and $Y$ respectively in the following set of reactions?

Which of the following substances is the most volatile?

Give the reaction for heating of phenol with zinc powder.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The given reaction can occur in the presence of:$(1)$ Bromine water$(2)$ $Br_2$ in $CS_2, 273 \ K$$(3)$ $Br_2 / FeBr_3$$(4)$ $Br_2$ in $CHCl_3, 273 \ K$Choose the correct answer from the options given below:[Image: Phenol reacting to form p-bromophenol as the major product]