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

Characterstics of aromaic are:

Question # 2

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

Question # 3

Which of the following is explosive?

Question # 4

Benzene acid can be prepared from the oxidation of:

Question # 5

During nitration of benzene, the active nitrating agent is:

Question # 6

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 7

Which compound is the most reactive one?

Question # 8

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

Question # 9

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

Question # 10

Monosubstituted benzene can have disubstitution at position

Question # 11

Which terms was derived from " aroma"?

Question # 12

Benzoic acid can be prepared from the oxidation of

Question # 13

Simplest aromatic compound is

Question # 14

Simple aromatic compound is:

Question # 15

Which term was derived from "aroma":

Question # 16

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

Question # 17

Bond angle in benzene is :

Question # 18

Aromatic hydrocarbons are the derivatives of:

Question # 19

The electrophile in aromatic sulphonation Is

Question # 20

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 21

Kekule structures contributed towards actual structure of benzene

Question # 22

The electrophile in aromatic sulphontion is:

Question # 23

Which is the property of benzene?

Question # 24

Aromatic hydrocarbons are derivatives of

Question # 25

Benzene gives reactions generally:

Question # 26

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

Question # 27

The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:

Question # 28

Benzene cannot undergo:

Question # 29

Benzene was discovered by first of all

Question # 30

Ozonolysis of benzene gives

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
2 Arenes are also called
A. atom
B. hydrocarbons
C. aromatic
D. benzene
3 The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:
A. Isomerization
B. Aromatization
C. Dealkylation
D. Rearrangment
4 The hybirdization in benzene is:
A. sp3
B. sp2
C. sp2
D. dsp2
5 Amongst the following, the compound that can be most readily sulphonated is
A. toluene
B. benzene
C. nitrobenzene
D. chlorobenzene
6 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
7 Ozonolysis of benzene gives:
A. Nitration
B. sulphonation
C. ozonide
D. glyoxal
8 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
9 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20
10 Among the following, poly cyclic compound is:
A. styrene
B. cumene
C. napthalene
D. xylene

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