HARD
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The major product formed on monobromination of phenylbenzoate is :

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Important Questions on Hydrocarbons

MEDIUM
Which of the following can be used as the halide component for Friedel-Crafts reaction?
MEDIUM

The major product of the following reaction is:
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EASY
The oxidation of benzene by V2O5 in the presence of air produces:
EASY
Aromatic electrophilic substitution reaction that is reversible is
EASY
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
EASY
The major product obtained in the reaction of toluene with 1-brome-2-methyl propane in the presence of anhydrous AlCl3 is
EASY
Which of the following compounds is not aromatic?
MEDIUM
In the following sequence of reactions the maximum number of atoms present in molecule ‘ C ’ in one plane is_______
ACutubeRed  hotBAnhydrousAlCl3CH3Cl1.eqC
(A is a lowest molecular weight alkyne)
MEDIUM
Which of the following compound is most reactive in electrophilic aromatic substitution?
MEDIUM
Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product?
MEDIUM
Which of the following compounds are aromatic?

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HARD
P on treatment with Br2/FeBr3 in CCl4 produced a single isomer C8H7O2Br wile heating P with sodalime gives toluene. The compound P is:
EASY
In the following reactions, X, Y and Z are

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EASY

In the following reactions

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X and Y, respectively, are:

EASY
Which of the following compounds will not undergo Friedel Crafts reaction with benzene?
MEDIUM

Among the following, the reaction that proceeds through an electrophilic substitution, is:

MEDIUM
Polysubstitution is a major drawback in:
MEDIUM

Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list

-OH -CN -CO2H -OCH3 -NHCOCH3 -CHO
I II III IV V VI
MEDIUM

 The major product of the following reaction is:

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MEDIUM
Which product is formed when the following compound is treated with Br2 in the presence of FeBr3?
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