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

The benzene molecule contains:

Question # 2

Which terms was derived from " aroma"?

Question # 3

Which of the following is explosive:

Question # 4

Monosubstituted benzene can have disubstitution at position

Question # 5

Kekule structures contributed towards actual structure of benzene

Question # 6

Benzene was discovered by first of all:

Question # 7

Which compound is the most reactvie one:

Question # 8

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

Question # 9

Kekule structures contributed towards actual structure of benzene

Question # 10

Aromatic hydrocarbons are derivatives of

Question # 11

Among the following, poly cyclic compound is:

Question # 12

Benzene cannot undergo

Question # 13

Aromatic compounds burn with sooty flame cause

Question # 14

Which term was derived from "aroma":

Question # 15

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

Question # 16

The benzene molecule contains

Question # 17

Benzene acid can be prepared from the oxidation of:

Question # 18

During nitration of benzene. the active nitrating agent is

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

Which compound is the most reactive one?

Question # 25

Benzene gives reactions generally

Question # 26

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

Question # 27

The electrophile in aromatic sulphontion is:

Question # 28

Simple aromatic compound is:

Question # 29

Ozonolysis of benzene gives:

Question # 30

Aroma meas:

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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 Aromatic hydrocarbons are the derivatives of:
A. Normal series of parrafins
B. Alkene
C. Benzene
D. Cyclohexane
3 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
4 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
5 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
6 Which compound is the most reactive one?
A. benzene
B. ethene
C. ethane
D. ethyne
7 Aromatic compounds burn with sooty flame cause
A. They have high percentage of hydrogen
B. They have a ring structure
C. They have high percentage of carbon
D. They resist reaction with air
8 Which term was derived from atomos?
A. atom
B. hydrocarbon
C. aromatic
D. aliphatic
9 Amongst the following, the compound that can be most readily sulphonated is:
A. Toluene
B. Benzene
C. nitrobenzene
D. chlorobenzene
10 Ozonolysis of benzene gives:
A. Nitration
B. sulphonation
C. ozonide
D. glyoxal

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