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

Monosubstituted benzene can have disubstitution at position:

Question # 2

Which compound is the most reactvie one:

Question # 3

Benzene was discovered by first of all:

Question # 4

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

Question # 5

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 6

Which is the property of benzene:

Question # 7

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

Question # 8

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

Question # 9

Which is the property of benzene?

Question # 10

Bond angle in benzene is :

Question # 11

Benzene gives reactions generally

Question # 12

Which of the following is explosive:

Question # 13

Aromatic hydrocarbons are derivatives of

Question # 14

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

Question # 15

The hydridization in benzene is

Question # 16

Benzene cannot undergo:

Question # 17

Arenes are also called

Question # 18

During nitration of benzene, the active nitrating agent is:

Question # 19

Which of the following is explosive?

Question # 20

Benzene acid can be prepared from the oxidation of:

Question # 21

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

Question # 22

The electrophile in aromatic sulphontion is:

Question # 23

Benzene was discovered by first of all

Question # 24

Monosubstituted benzene can have disubstitution at position

Question # 25

During nitration of benzene. the active nitrating agent is

Question # 26

Among the following, poly cyclic compound is

Question # 27

Ozonolysis of benzene gives

Question # 28

Benzene gives reactions generally:

Question # 29

Bond angle in benzene is

Question # 30

The benzene molecule contains

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Monosubstituted benzene can have disubstitution at position:
A. Ortho
B. meta
C. para
D. a, b, c
2 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
3 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
4 Which of the following is explosive?
A. Trinitrophenol
B. Nitrophenol
C. Nitromethane
D. Nitrobenzene
5 Which term was derived from atomos?
A. atom
B. hydrocarbon
C. aromatic
D. aliphatic
6 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
7 Ratio of carbon to hydrogen in aromatic compounds is
A. Low than alkanes
B. High than alkanes
C. Low than alkenes not high than alkanes
D. High than high than alkenes
8 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
9 Ozonolysis of benzene gives:
A. Nitration
B. sulphonation
C. ozonide
D. glyoxal
10 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven

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