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

00:00
Question # 1

Benzene was discovered by first of all

Question # 2

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

Question # 3

Which of the following is explosive?

Question # 4

Benzene cannot undergo:

Question # 5

Benzene gives reactions generally:

Question # 6

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

Question # 7

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

Question # 8

Characterstics of aromaic are:

Question # 9

Which compound is the most reactive one?

Question # 10

Aromatic compounds burn with sooty flame cause

Question # 11

During nitration of benzene. the active nitrating agent is

Question # 12

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

Question # 13

Ozonolysis of benzene gives:

Question # 14

The benzene molecule contains:

Question # 15

Benzoic acid can be prepared from the oxidation of

Question # 16

Benzene gives reactions generally:

Question # 17

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

Question # 18

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

Question # 19

The hybirdization in benzene is:

Question # 20

Arenes are also called

Question # 21

Which compound is the most reactvie one:

Question # 22

Bond angle in benzene is

Question # 23

The electrophile in aromatic sulphonation Is

Question # 24

The hydridization in benzene is

Question # 25

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

Question # 26

Ozonolysis of benzene gives

Question # 27

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

Question # 28

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 29

Benzene cannot undergo

Question # 30

Kekule structures contributed towards actual structure of benzene

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ECAT Class Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
2 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
3 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
4 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
5 Among the following, poly cyclic compound is:
A. styrene
B. cumene
C. napthalene
D. xylene
6 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
7 The hydridization in benzene is
A. sp3
B. sp2
C. sp4
D. dsp2
8 Benzene gives reactions generally:
A. Electropholic subsitution
B. addition
C. synthesis
D. addition and electropholic subsitution
9 Which of the following is explosive?
A. Trinitrophenol
B. Nitrophenol
C. Nitromethane
D. Nitrobenzene
10 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol

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