; Product (B) of this reaction is :

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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Which one of the following compounds undergoes bromination of its aromatic ring (electrophilic aromatic substitution) at the fastest rate ?

Concept Questions :-

Aromatic Hydrocarbons - Functional Groups, Directive Influence in Monosubstituted Benzene
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Cyclopentadiene is much more acidic than cyclopentane. The reason is that :

1. cyclopentadiene has conjugated double bonds
2. cyclopentadiene has both sp2 and sp3 hybridized carbon atoms
3. cyclopentadiene is a strain-free cyclic system
4. cyclopentadienide ion, the conjugate base of cyclopentadiene, is an aromatic species and hence has higher stability

Concept Questions :-

Aromatic Hydrocarbons - physical property
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(I)(II)
(III)          (IV)

Friedel-Crafts acylation reaction can be used to obtain the compounds
(a) II,III and IV
(b) I,III and IV
(c) I and II
(d) II and III

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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Identify the end product (B) of the following sequence of reactions.

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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Major product obtained in given reaction is:

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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(2) H3O(1) KMnO4, HO-, 

The labelled carbon goes with:

1. Ph-C14O2H                 2. C14O2          3. Ph-C14H2-CO2H            4. C14H4

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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Which of the following benzene ring substituents is deactivating but ortho-para directing?

(a) -N=O
(b) -OCH3
(c) -COCH3
(d) -NO2

 

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Which of the following organic chlorides will not give a Friedel-Craft alkylation product when heated with benzene and AlCl3 ?

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Which of the following is aromatic ?
(a)(b) (c) (d)
                        (Carbene)                        (Carbene)

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