Question # 1

Amongst the following, the compound that can be most readily sulphonated is

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toluene

benzene

nitrobenzene

chlorobenzene

Biphenyl is

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Monocyclic aromatic compound

Polyclic aromatic compound

Polycyclic fused ring compound

Alicyclic compound

Benzene molecule is made up of.

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3- pi and 9 sigma bonds

6- pi and 6 sigma bonds

6 -pi and 12 sigma bonds

4 -pi and 12 sigma bonds

Benzene cannot undergo

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Substitution reactions

addition reactions

oxidation reactions

elimination reactions

m-choronitro benzene is prepared by

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Nitration of chlorobenzene

Nitration of Benzene

Chlorination of Nitrobenzene

Nitration of m-chlorobenzene

Among the following the compound that can be most readily suphonted is.

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Toluene

Benzene

Nitrobenzene

Chlorobenzene

Which of the following is Ortho and Para directing group

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-I

-CHO

-COR

-NH₂

Which group when attached with benzene increases electron density of ring.

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-COOH

-NO

-CHO

-CH3

The resonating contributing structures of Benzene are

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2

3

5

7

Which one is not electrophile

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BF3

SO3

AlCl3

NH3

Which compound form benzoic acid on oxidation with strong oxidizing agent.

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Toluene

Ethyl benzene

n propyl benzene

All

Which catalyst is used Friedel Crafts reactions

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AlCl₃

BeCl₂

NaCl

HNO₃

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