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

Kekule structures contributed towards actual structure of benzene

Question # 3

Which of the following is explosive?

Question # 4

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

Question # 5

Which term was derived from atomos?

Question # 6

The electrophile in aromatic sulphonation Is

Question # 7

During nitration of benzene. the active nitrating agent is

Question # 8

Aroma meas:

Question # 9

During nitration of benzene, the active nitrating agent is:

Question # 10

Simplest aromatic compound is

Question # 11

The hydridization in benzene is

Question # 12

Benzene gives reactions generally:

Question # 13

The benzene molecule contains

Question # 14

Monosubstituted benzene can have disubstitution at position

Question # 15

Benzene acid can be prepared from the oxidation of:

Question # 16

Ozonolysis of benzene gives:

Question # 17

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 18

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

Question # 19

Which compound is the most reactive one?

Question # 20

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

Question # 21

The benzene molecule contains:

Question # 22

Benzene cannot undergo:

Question # 23

Bond angle in benzene is :

Question # 24

Aromatic hydrocarbons are derivatives of

Question # 25

Which compound is the most reactvie one:

Question # 26

Which of the following is explosive:

Question # 27

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

Question # 28

Which terms was derived from " aroma"?

Question # 29

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

Question # 30

Benzene gives reactions generally

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Amongst the following, the compound that can be most readily sulphonated is
A. toluene
B. benzene
C. nitrobenzene
D. chlorobenzene
2 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
3 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
4 Which term was derived from "aroma":
A. Atom
B. Hydrocarbons
C. aromatic
D. aliphatic
5 Aromatic hydrocarbons are the derivatives of:
A. Normal series of parrafins
B. Alkene
C. Benzene
D. Cyclohexane
6 Among the following, poly cyclic compound is:
A. styrene
B. cumene
C. napthalene
D. xylene
7 Benzene gives reactions generally
A. electrophilic
B. addition substitution
C. synthesis
D. addition and electrophilic substitution
8 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
9 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
10 Ozonolysis of benzene gives
A. nitration
B. sulphonation
C. ozonide
D. glyoxal

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