Halorenes
Halorenes: Overview
This Topic covers sub-topics such as Haloarenes, Raschig Process, Chemical Reactions of Haloarenes, Sulphonation of Haloarenes, Reduction of Chlorobenzene, Reaction of Haloarenes with Metals and, Preparations of Haloarenes
Important Questions on Halorenes
In which of the following conversions oxidation is taking place
(i) propanone to propene
(ii) benzoic acid to benzaldehyde
(iii) bromobenzene to 1-phenylethanol

Benzyl chloride can be prepared from toluene by chlorination with –

What is meant by rasching process in organic chemistry?

During the conversion of chlorobenzene to benzene, nickel-aluminium alloy is used as the reductant.

The reduction reaction of chlorobenzene produces benzene in presence of nickel-aluminium alloy.

The reduction reaction of chlorobenzene in presence of nickel-aluminium alloy produces _____.

The conversion reaction of chlorobenzene gives benzene by _____.

Write the reduction reaction of chlorobenzene.

Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.
Reason: Halogen atom is a ring deactivator.

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

Write the chemical reaction between potassium iodide and diazonium chloride.

The metal used in the Ullmann reaction is

Explain the Wurtz-Fittig reaction.


Chlorobenzene and sodium react in dry ether medium to yield _____ (organic compound).

Electrophilic substitution reactions of Haloarenes are

Electrophilic substitution reactions of Haloarenes are meta directing.

Electrophilic substitution reactions of Haloarenes are

Write the mechanism of the electrophilic substitution reaction of Haloarenes.

Presence of a nitro group at ortho or para position increases the reactivity of haloarenes towards _____ substitution.(nucleophilic/electrophilic)
