Preparation of Haloarenes

IMPORTANT

Preparation of Haloarenes: Overview

This topic covers concepts, such as, Preparations of Haloarenes, Electrophilic Substitution Halogenation of Aromatic Hydrocarbons, Reaction of KI with Benzene Diazonium Chloride & Preparation of Benzylic Halides Using N-Bromosuccinimide etc.

Important Questions on Preparation of Haloarenes

EASY
IMPORTANT

Which of the following is an example of Sandmeyer reaction:

(i)

 C6H5N2+Cl-       +         KI   C6H5I + KCl + N2Benzene diazonium chloride   Iodobenzene

 (ii)

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MEDIUM
IMPORTANT

Which of the following will not give haloderivative by addition of HBr?

EASY
IMPORTANT

Chlorobenzene is prepared commercially by

EASY
IMPORTANT

Chlorobenzene is formed by reaction of chlorine with benzene in the presence of AlCl3. Which of the following species attacks the benzene ring in this reaction?

MEDIUM
IMPORTANT

The reaction of toluene with chlorine in the presence of iron and in the absence of light yields _____.

MEDIUM
IMPORTANT

The best method for the preparation of chlorobenzene is :

MEDIUM
IMPORTANT

Product formed in the reaction can be-

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MEDIUM
IMPORTANT

Among the following, which compound undergoes chlorination at the fastest rate?

EASY
IMPORTANT

Find out the major product in the following reaction:

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EASY
IMPORTANT

On completion of reaction what will be the obtained product "P"

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MEDIUM
IMPORTANT

Which of the following species is expected to have maximum enthalpy in an electrophilic aromatic substitution reaction ?

 

(i) Question Image

(ii) Question Image

(iii) Question Image

(iv) Question Image

(v)Question Image

 

MEDIUM
IMPORTANT

Find the major product in the following reaction,

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MEDIUM
IMPORTANT

Which reagents would you use to carry out the reaction

Ethyl benzene 2 and 4 - chloro 1 - ethyl benzene?

MEDIUM
IMPORTANT

Which are the starting materials for the preparation of
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HARD
IMPORTANT

Predict the major product of the following reaction.

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MEDIUM
IMPORTANT

When nitrobenzene is treated with Br2 in presence of FeBr3 , the major product formed is m-bromonitrobenzene. Statements which are related to obtain m-isomer are:

HARD
IMPORTANT

In Gattermann Koch reaction

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The product formed in the above reaction,

HARD
IMPORTANT

The following reaction is known as

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MEDIUM
IMPORTANT

In the reaction sequence

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Compound 'X ' is