Question # 1

Benzene gives reactions generally:

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Electropholic subsitution

addition

synthesis

addition and electropholic subsitution

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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AlCl³

HNO₃

BeCl₂

NaCl

The conversion of n-hexane into benzene by heating in the presence of CO, is called

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lsomerization

Aromatization

Dealkylation

Rearrangement

Which of the following is explosive?

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Trinitrophenol

Nitrophenol

Nitromethane

Nitrobenzene

Simplest aromatic compound is

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bezene

toluene

aniline

phenol

_{Which compound is the most reactvie one:}

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benzene

ethene

ethane

ethyne

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

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120

150

170

180

Ratio of carbon to hydrogen in aromatic compounds is:

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Low than alkanes

High than alkanes

Low than alkanes not high than alkanes

High than alkanes

Simple aromatic compound is:

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benzene

toluene

aniline

phenol

During nitration of benzene. the active nitrating agent is

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NO₃^-1

NO₂⁺

NO₂^-1

HNO₃

Characterstics of aromaic are:

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how hydrogen carbon ratio than alkanes

characterstics oudour

a &B

Characterstics properties

Benzene cannot undergo:

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Substitutions reactions

Addition reactions

Oxidation reactions

Elimination reactions

The benzene molecule contains

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Three double bond

Two double bond

One double bond

Delocalized pie electron charge

Benzene reacts with Cl, in sunlight to give the end product

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C₆H₆Cl₆

C₆H₆Cl

O - C₆H₄Cl₂

P-C₆H₄Cl₂

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 acid can be prepared from the oxidation of:

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benzene

ethyl benzene

benzonic acid

toluene

Empirical formula mass of benzene is times lesser than molecular formula mass

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four

five

six

seven

Which terms was derived from " aroma"?

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atom

hydrocarbons

aromatic

aliphatic

Aromatic compounds burn with sooty flame cause:

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They have high percentage of hydrogan

They have ring structure

They have high percentage of carbon

They resist reaction with air

Which of the following is explosive:

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Trinitropheonal

Nitropheonal

Nitromethane

Nitrobenzene

Aromatic hydrocarbons are derivatives of

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normal series of paraffins

alkene

benzene

cyclohexane

Aroma meas:

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Fragrant

Invisible

latest affinityt

benzene

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

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Toluene

Benzene

nitrobenzene

chlorobenzene

Acyiation of benzene to produce aliphatic aromatic ketones is known as

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Friedel Craft's reaction

benzenecondensation

hydroformylation

Clemmensen reduction

Benzoic acid can be prepared from the oxidation of

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benzene

ethyl benzene

benzoic acid

toluene

Which compound is the most reactive one?

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benzene

ethene

ethane

ethyne

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

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120

150

170

180

Ratio of carbon to hydrogen in aromatic compounds is

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Low than alkanes

High than alkanes

Low than alkenes not high than alkanes

High than high than alkenes

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

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four

five

six

seven

During nitration of benzene, the active nitrating agent is:

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NO₃^-1

NO₂₊

NO₂^-1

HNO₃

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