ECAT Pre Engineering Chemistry Chapter 20 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 20 Aromatic Hydrocarbons

Try The MCQ's Test For ECAT Chemistry Chapter 20 Aromatic Hydrocarbons

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ECAT Chemistry Chapter 20 Aromatic Hydrocarbons

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Question # 1

Among the following, poly cyclic compound is:

Question # 2

Ozonolysis of benzene gives:

Question # 3

Aromatic hydrocarbons are the derivatives of:

Question # 4

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

Question # 5

Benzene acid can be prepared from the oxidation of:

Question # 6

Among the following, poly cyclic compound is

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Aromatic compounds burn with sooty flame cause:

Question # 11

Benzene gives reactions generally:

Question # 12

The electrophile in aromatic sulphonation Is

Question # 13

Which is the property of benzene?

Question # 14

The benzene molecule contains:

Question # 15

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 16

Benzene gives reactions generally:

Question # 17

Which of the following is explosive?

Question # 18

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 19

Kekule structures contributed towards actual structure of benzene

Question # 20

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

Question # 21

Which is the property of benzene:

Question # 22

Aromatic hydrocarbons are derivatives of

Question # 23

Aroma meas:

Question # 24

The electrophile in aromatic sulphontion is:

Question # 25

The hybirdization in benzene is:

Question # 26

Benzene was discovered by first of all

Question # 27

Which of the following is explosive:

Question # 28

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

Question # 29

Benzene was discovered by first of all:

Question # 30

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

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
2 Ratio of carbon to hydrogen in aromatic compounds is:
A. Low than alkanes
B. High than alkanes
C. Low than alkanes not high than alkanes
D. High than alkanes
3 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
4 Which of the following is explosive?
A. Trinitrophenol
B. Nitrophenol
C. Nitromethane
D. Nitrobenzene
5 Amongst the following, the compound that can be most readily sulphonated is
A. toluene
B. benzene
C. nitrobenzene
D. chlorobenzene
6 Among the following, poly cyclic compound is:
A. styrene
B. cumene
C. napthalene
D. xylene
7 Characterstics of aromaic are:
A. how hydrogen carbon ratio than alkanes
B. characterstics oudour
C. a &B
D. Characterstics properties
8 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
9 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
10 Benzene gives reactions generally:
A. Electropholic subsitution
B. addition
C. synthesis
D. addition and electropholic subsitution

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