Question # 1

Resonance energy of benzene is (in KJ mol^-1):

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120

150

170

180

Simplest aromatic compound is

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bezene

toluene

aniline

phenol

During nitration of benzene. the active nitrating agent is

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NO₃^-1

NO₂⁺

NO₂^-1

HNO₃

Benzene cannot undergo

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substitution reactions

addition reactions

oxidation reactions

elimination reactions

Which terms was derived from " aroma"?

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atom

hydrocarbons

aromatic

aliphatic

Among the following, poly cyclic compound is

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styrene

cumene

naphthalene

xylene

Benzoic acid can be prepared from the oxidation of

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benzene

ethyl benzene

benzoic acid

toluene

Benzene acid can be prepared from the oxidation of:

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benzene

ethyl benzene

benzonic acid

toluene

Ozonolysis of benzene gives

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nitration

sulphonation

ozonide

glyoxal

Which term was derived from "aroma":

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Atom

Hydrocarbons

aromatic

aliphatic

Monosubstituted benzene can have disubstitution at position

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ortho

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60%

70%

80%

90%

Which term was derived from atomos?

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atom

hydrocarbon

aromatic

aliphatic

Aromatic hydrocarbons are derivatives of

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normal series of paraffins

alkene

benzene

cyclohexane

empirical formula mass of benzene is time lesser than moleculer formula mass:

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four

five

six

seven

The electrophile in aromatic sulphonation Is

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H₂SO₄

HSO₄^-

SO₃

SO₃⁺

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

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Toluene

Benzene

nitrobenzene

chlorobenzene

Which compound is the most reactive one?

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benzene

ethene

ethane

ethyne

Which is the property of benzene?

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decolourizes KMnO₄

straight chain structure

only double bond is present

triple and double bond

The electrophile in aromatic sulphontion is:

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H₂SO₄

HSO₄

SO₃

SO₃₊

The hydridization in benzene is

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sp³

sp²

sp⁴

dsp²

Aroma meas:

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Fragrant

Invisible

latest affinityt

benzene

Which is the property of benzene:

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Decolourizes KMnO₄

straight chain structure

only double bond is present

triple and double bond

Benzene cannot undergo:

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Substitutions reactions

Addition reactions

Oxidation reactions

Elimination reactions

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

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toluene

benzene

nitrobenzene

chlorobenzene

Aromatic compounds burn with sooty flame cause

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They have high percentage of hydrogen

They have a ring structure

They have high percentage of carbon

They resist reaction with air

Benzene gives reactions generally:

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Electropholic subsitution

addition

synthesis

addition and electropholic subsitution

Benzene was discovered by first of all:

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Micheal Faraday

Hofmann

Ainderson

Sorenbon

Ozonolysis of benzene gives:

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Nitration

sulphonation

ozonide

glyoxal

Among the following, poly cyclic compound is:

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styrene

cumene

napthalene

xylene

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