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

Aroma meas:

Question # 2

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

Question # 3

The hydridization in benzene is

Question # 4

Bond angle in benzene is :

Question # 5

Aromatic compounds burn with sooty flame cause

Question # 6

Bond angle in benzene is

Question # 7

Ozonolysis of benzene gives

Question # 8

Benzene gives reactions generally

Question # 9

Which is the property of benzene?

Question # 10

The benzene molecule contains

Question # 11

Kekule structures contributed towards actual structure of benzene

Question # 12

The benzene molecule contains:

Question # 13

Aromatic compounds burn with sooty flame cause:

Question # 14

Simple aromatic compound is:

Question # 15

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

Question # 16

Among the following, poly cyclic compound is

Question # 17

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

Question # 18

Simplest aromatic compound is

Question # 19

Benzene acid can be prepared from the oxidation of:

Question # 20

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 21

Which term was derived from "aroma":

Question # 22

Benzoic acid can be prepared from the oxidation of

Question # 23

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

Question # 24

Benzene cannot undergo

Question # 25

Which compound is the most reactive one?

Question # 26

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 27

Monosubstituted benzene can have disubstitution at position

Question # 28

Which of the following is explosive?

Question # 29

Acylation of benzene to produce aliphatic aromatic ketones is known as:

Question # 30

Which term was derived from atomos?

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
2 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
3 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
4 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
5 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
6 Benzene was discovered by first of all:
A. Micheal Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
7 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
8 Resonance energy of benzene is (in KJ mol-1)
A. 120
B. 150
C. 170
D. 180
9 Benzoic acid can be prepared from the oxidation of
A. benzene
B. ethyl benzene
C. benzoic acid
D. toluene
10 Aromatic compounds burn with sooty flame cause:
A. They have high percentage of hydrogan
B. They have ring structure
C. They have high percentage of carbon
D. They resist reaction with air

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