Chemical Reactions of Haloarenes

IMPORTANT

Chemical Reactions of Haloarenes: Overview

This topic covers concepts, such as, Chemical Reactions of Haloarenes, Nucleophilic Substitution Reactions of Haloarenes, Fittig's Reaction & Wurtz-Fittig's Reaction etc.

Important Questions on Chemical Reactions of Haloarenes

MEDIUM
IMPORTANT

In which of the following conversions oxidation is taking place

(i) propanone to propene

(ii) benzoic acid to benzaldehyde

(iii) bromobenzene to 1-phenylethanol

MEDIUM
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Benzyl chloride   ( C 6 H 5 C H 2 Cl ) can be prepared from toluene by chlorination with –

EASY
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The structure of the major organic product expected form the following reaction are

C6H6 (Benzene)+(CH3)2CHCH2ClAlCl3

MEDIUM
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In the following reaction, the nucleophile (MeO ) will displace which of the halogen atoms most readily?

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HARD
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Examine the structural formula shown below and find out how many compounds undergo electrophilic nitration more rapidly than fluoro benzene.

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MEDIUM
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Assertion: In mono haloarenes, electrophilic substitution occurs at ortho and para positions.

Reason: Halogen atom is a ring deactivator.
 

EASY
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Why does benzene undergo an electrophilic substitution reaction easily?

EASY
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Explain electrophilic substitution reaction in haloarenes.

MEDIUM
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 Electrophilic substitution reactions of Haloarenes are

EASY
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 Electrophilic substitution reactions of Haloarenes are meta directing.

MEDIUM
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 Electrophilic substitution reactions of Haloarenes are

HARD
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Write the mechanism of the electrophilic substitution reaction of Haloarenes.

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

MEDIUM
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The halogen compound which will not react with phenol to give ethers is

MEDIUM
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The halogen compound which will not react with phenol to give ethers is

EASY
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The rates of reaction of NaOH with:

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follow the order:-

HARD
IMPORTANT

The major product of the following reaction is _________

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EASY
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In the questions arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.

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MEDIUM
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The above reaction is an example of _____ reaction. (Wurtz/Fittig)

HARD
IMPORTANT

Aryl halides are less reactive towards nucleophilic substitution reaction as compared to alkyl halides due to: