Preparations of Haloarenes

IMPORTANT

Preparations of Haloarenes: Overview

This topic covers concepts, such as, Gattermann's Reactions, Preparations of Haloarenes, Balz-Schiemann Reaction & Raschig Process etc.

Important Questions on Preparations 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

What is Raschig method?

EASY
IMPORTANT

Aromatic amines undergo diazotization under the influence of

EASY
IMPORTANT

Write the Balz-Schiemann reaction.

HARD
IMPORTANT

Which of the following cannot be prepared by Sandmeyer's reaction?

MEDIUM
IMPORTANT

Write the chemical reaction between potassium iodide and diazonium chloride.

EASY
IMPORTANT

Explain Gattermann reaction with an example of preparation chlorobenzene.

EASY
IMPORTANT

Write the reaction for preparation of iodo benzene through Gattermann reaction.

EASY
IMPORTANT

Explain Gattermann reaction with an example.

HARD
IMPORTANT

Aryl iodides can be prepared by reaction of arenes with iodine in the presence of an _____.(oxidising agent/reducing agent)

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

Chlorobenzene is formed by reaction of chlorine with benzene in the presence of AlCl3. What is the charge on the attacking species?( Mention the sign in words)

MEDIUM
IMPORTANT

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

MEDIUM
IMPORTANT

Identify A and B in the following:

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HARD
IMPORTANT

Write a note on Sandmeyer's reaction.

MEDIUM
IMPORTANT

How is iodobenzene obtained from aniline?

HARD
IMPORTANT

How is the following obtained from aniline:

 Bromobenzene 

HARD
IMPORTANT

How is the following obtained from aniline:

Chlorobenzene

HARD
IMPORTANT

Write a note on Sandmeyer's reaction.