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

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

Question # 2

Among the following, poly cyclic compound is

Question # 3

Monosubstituted benzene can have disubstitution at position:

Question # 4

Aromatic hydrocarbons are the derivatives of:

Question # 5

Which term was derived from "aroma":

Question # 6

Which of the following is explosive?

Question # 7

Benzene gives reactions generally:

Question # 8

Which terms was derived from " aroma"?

Question # 9

Aromatic compounds burn with sooty flame cause

Question # 10

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

Question # 11

Benzene cannot undergo

Question # 12

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

Question # 13

Simplest aromatic compound is

Question # 14

Benzene was discovered by first of all

Question # 15

Benzene cannot undergo:

Question # 16

The hydridization in benzene is

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Benzoic acid can be prepared from the oxidation of

Question # 21

Bond angle in benzene is :

Question # 22

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

Question # 23

The hybirdization in benzene is:

Question # 24

Ozonolysis of benzene gives

Question # 25

Which is the property of benzene?

Question # 26

Which is the property of benzene:

Question # 27

Among the following, poly cyclic compound is:

Question # 28

The electrophile in aromatic sulphontion is:

Question # 29

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

Question # 30

Benzene acid can be prepared from the oxidation of:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Arenes are also called
A. atom
B. hydrocarbons
C. aromatic
D. benzene
2 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
3 Benzene gives reactions generally:
A. Electropholic subsitution
B. addition
C. synthesis
D. addition and electropholic subsitution
4 Which term was derived from atomos?
A. atom
B. hydrocarbon
C. aromatic
D. aliphatic
5 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
6 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
7 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
8 Benzoic acid can be prepared from the oxidation of
A. benzene
B. ethyl benzene
C. benzoic acid
D. toluene
9 During nitration of benzene. the active nitrating agent is
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
10 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl

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