Question # 1

The hydridization in benzene is

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sp³

sp²

sp⁴

dsp²

The benzene molecule contains:

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Three double bond

Two double bond

One double bond

DelocalizedᏘ electron charge

Characterstics of aromaic are:

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how hydrogen carbon ratio than alkanes

characterstics oudour

a &B

Characterstics properties

Ozonolysis of benzene gives

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nitration

sulphonation

ozonide

glyoxal

Which terms was derived from " aroma"?

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atom

hydrocarbons

aromatic

aliphatic

Which of the following acid can be used as a catalyst in Friedel craft's reaction

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AlCl³

HNO₃

BeCl₂

NaCl

Acylation of benzene to produce aliphatic aromatic ketones is known as:

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Friedel Craft's reaction

Benzene condensation

Hydroformylation

Cellemense

Arenes are also called

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atom

hydrocarbons

aromatic

benzene

Which compound is the most reactive one?

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benzene

ethene

ethane

ethyne

Monosubstituted benzene can have disubstitution at position

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ortho

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benzene

ethene

ethane

ethyne

Which term was derived from atomos?

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atom

hydrocarbon

aromatic

aliphatic

Benzene acid can be prepared from the oxidation of:

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benzene

ethyl benzene

benzonic acid

toluene

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

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Toluene

Benzene

nitrobenzene

chlorobenzene

Benzene was discovered by first of all:

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Micheal Faraday

Hofmann

Ainderson

Sorenbon

Kekule structures contributed towards actual structure of benzene

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60%

70%

80%

90%

Aromatic hydrocarbons are the derivatives of:

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Normal series of parrafins

Alkene

Benzene

Cyclohexane

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

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

The benzene molecule contains

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Three double bond

Two double bond

One double bond

Delocalized pie electron charge

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

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four

five

six

seven

Benzene cannot undergo:

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Substitutions reactions

Addition reactions

Oxidation reactions

Elimination reactions

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

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four

five

six

seven

Monosubstituted benzene can have disubstitution at position:

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Ortho

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Michael Faraday

Hofmann

Ainderson

Sorenbon

The electrophile in aromatic sulphontion is:

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H₂SO₄

HSO₄

SO₃

SO₃₊

Among the following, poly cyclic compound is

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styrene

cumene

naphthalene

xylene

Benzene gives reactions generally

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electrophilic

addition substitution

synthesis

addition and electrophilic substitution

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

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120

150

170

180

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

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120

150

170

180

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