Question # 1

_{Which compound is the most reactvie one:}

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benzene

ethene

ethane

ethyne

Which terms was derived from " aroma"?

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atom

hydrocarbons

aromatic

aliphatic

Characterstics of aromaic are:

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how hydrogen carbon ratio than alkanes

characterstics oudour

a &B

Characterstics properties

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

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AlCl₃

HNO₃

BeCl₂

NaCl

Benzene was discovered by first of all

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Michael Faraday

Hofmann

Ainderson

Sorenbon

The benzene molecule contains

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Three double bond

Two double bond

One double bond

Delocalized pie electron charge

Aromatic hydrocarbons are the derivatives of:

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Normal series of parrafins

Alkene

Benzene

Cyclohexane

During nitration of benzene. the active nitrating agent is

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NO₃^-1

NO₂⁺

NO₂^-1

HNO₃

Bond angle in benzene is :

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109..5^o

180^o

120^o

107.2^o

Which is the property of benzene:

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Decolourizes KMnO₄

straight chain structure

only double bond is present

triple and double bond

Which of the following is explosive?

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Trinitrophenol

Nitrophenol

Nitromethane

Nitrobenzene

Among the following, poly cyclic compound is:

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styrene

cumene

napthalene

xylene

Benzene gives reactions generally:

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Electropholic subsitution

addition

synthesis

addition and electropholic subsitution

Acyiation of benzene to produce aliphatic aromatic ketones is known as

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Friedel Craft's reaction

benzenecondensation

hydroformylation

Clemmensen reduction

Ozonolysis of benzene gives

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nitration

sulphonation

ozonide

glyoxal

Which compound is the most reactive one?

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benzene

ethene

ethane

ethyne

Benzene cannot undergo:

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Substitutions reactions

Addition reactions

Oxidation reactions

Elimination reactions

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

Simple aromatic compound is:

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benzene

toluene

aniline

phenol

The hybirdization in benzene is:

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sp³

sp²

dsp²

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

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toluene

benzene

nitrobenzene

chlorobenzene

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

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120

150

170

180

Benzene was discovered by first of all:

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Micheal Faraday

Hofmann

Ainderson

Sorenbon

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

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four

five

six

seven

Ozonolysis of benzene gives:

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Nitration

sulphonation

ozonide

glyoxal

Which is the property of benzene?

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decolourizes KMnO₄

straight chain structure

only double bond is present

triple and double bond

Which term 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 hydrogen

They have a ring structure

They have high percentage of carbon

They resist reaction with air

Aroma meas:

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Fragrant

Invisible

latest affinityt

benzene

Kekule structures contributed towards actual structure of benzene

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60%

70%

80%

90%

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ECAT Chemistry Chapter 20 Aromatic Hydrocarbons Online Test MCQs With Answers

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