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 electrophile in aromatic sulphonation Is

Question # 3

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 4

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

Question # 5

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

Question # 6

Aromatic hydrocarbons are derivatives of

Question # 7

Benzene cannot undergo:

Question # 8

Which term was derived from "aroma":

Question # 9

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

Question # 10

Aromatic hydrocarbons are the derivatives of:

Question # 11

Benzene was discovered by first of all:

Question # 12

Which is the property of benzene?

Question # 13

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

Question # 14

Which compound is the most reactvie one:

Question # 15

Benzene gives reactions generally:

Question # 16

Which compound is the most reactive one?

Question # 17

Arenes are also called

Question # 18

The benzene molecule contains:

Question # 19

Among the following, poly cyclic compound is

Question # 20

Benzene cannot undergo

Question # 21

Ozonolysis of benzene gives:

Question # 22

Which is the property of benzene:

Question # 23

Benzoic acid can be prepared from the oxidation of

Question # 24

Which term was derived from atomos?

Question # 25

Bond angle in benzene is :

Question # 26

Aromatic compounds burn with sooty flame cause

Question # 27

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

Question # 28

Among the following, poly cyclic compound is:

Question # 29

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

Question # 30

Monosubstituted benzene can have disubstitution at position

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Which of the following acid can be used as a catalyst in Friedel craft's reaction
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
2 Benzene cannot undergo:
A. Substitutions reactions
B. Addition reactions
C. Oxidation reactions
D. Elimination reactions
3 Benzoic acid can be prepared from the oxidation of
A. benzene
B. ethyl benzene
C. benzoic acid
D. toluene
4 Resonance energy of benzene is (in KJ mol-1)
A. 120
B. 150
C. 170
D. 180
5 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
6 Characterstics of aromaic are:
A. how hydrogen carbon ratio than alkanes
B. characterstics oudour
C. a &B
D. Characterstics properties
7 Monosubstituted benzene can have disubstitution at position:
A. Ortho
B. meta
C. para
D. a, b, c
8 Which terms was derived from " aroma"?
A. atom
B. hydrocarbons
C. aromatic
D. aliphatic
9 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
10 The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:
A. Isomerization
B. Aromatization
C. Dealkylation
D. Rearrangment

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