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

Which terms was derived from " aroma"?

Question # 2

Kekule structures contributed towards actual structure of benzene

Question # 3

Which compound is the most reactvie one:

Question # 4

Benzene gives reactions generally

Question # 5

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

Question # 6

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

Question # 7

Which is the property of benzene:

Question # 8

Benzene gives reactions generally:

Question # 9

Benzene was discovered by first of all

Question # 10

Benzene was discovered by first of all:

Question # 11

Aromatic hydrocarbons are derivatives of

Question # 12

Aroma meas:

Question # 13

During nitration of benzene, the active nitrating agent is:

Question # 14

Which compound is the most reactive one?

Question # 15

Aromatic hydrocarbons are the derivatives of:

Question # 16

The electrophile in aromatic sulphonation Is

Question # 17

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

Question # 18

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 19

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

Question # 20

The electrophile in aromatic sulphontion is:

Question # 21

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

Question # 22

Bond angle in benzene is :

Question # 23

During nitration of benzene. the active nitrating agent is

Question # 24

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

Question # 25

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

Question # 26

Ratio of carbon to hydrogen in aromatic compounds is

Question # 27

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

Question # 28

Aromatic compounds burn with sooty flame cause

Question # 29

The hybirdization in benzene is:

Question # 30

The hydridization in benzene is

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ECAT 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 Among the following, poly cyclic compound is:
A. styrene
B. cumene
C. napthalene
D. xylene
3 Which compound is the most reactvie one:
A. benzene
B. ethene
C. ethane
D. ethyne
4 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
5 Amongst the following, the compound that can be most readily sulphonated is:
A. Toluene
B. Benzene
C. nitrobenzene
D. chlorobenzene
6 Benzene gives reactions generally
A. electrophilic
B. addition substitution
C. synthesis
D. addition and electrophilic substitution
7 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
8 Monosubstituted benzene can have disubstitution at position
A. ortho
B. meta
C. para
D. a, b, c
9 Which is the property of benzene?
A. decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
10 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o

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