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

Benzoic acid can be prepared from the oxidation of

Question # 2

Kekule structures contributed towards actual structure of benzene

Question # 3

Kekule structures contributed towards actual structure of benzene

Question # 4

Benzene gives reactions generally:

Question # 5

Benzene gives reactions generally:

Question # 6

Benzene acid can be prepared from the oxidation of:

Question # 7

During nitration of benzene. the active nitrating agent is

Question # 8

Benzene was discovered by first of all

Question # 9

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

Question # 10

Aromatic hydrocarbons are derivatives of

Question # 11

Benzene cannot undergo

Question # 12

Bond angle in benzene is

Question # 13

The benzene molecule contains

Question # 14

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

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

Bond angle in benzene is :

Question # 19

Ozonolysis of benzene gives

Question # 20

Benzene reacts with Cl, in sunlight to give the end product

Question # 21

Which of the following is explosive?

Question # 22

Among the following, poly cyclic compound is:

Question # 23

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

Question # 24

Which of the following is explosive:

Question # 25

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

Question # 26

Benzene cannot undergo:

Question # 27

Monosubstituted benzene can have disubstitution at position

Question # 28

Which term was derived from atomos?

Question # 29

Ratio of carbon to hydrogen in aromatic compounds is

Question # 30

Aromatic hydrocarbons are the derivatives of:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Among the following, poly cyclic compound is
A. styrene
B. cumene
C. naphthalene
D. xylene
2 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
3 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
4 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
5 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
6 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
7 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
8 Benzene cannot undergo:
A. Substitutions reactions
B. Addition reactions
C. Oxidation reactions
D. Elimination reactions
9 Acylation of benzene to produce aliphatic aromatic ketones is known as:
A. Friedel Craft's reaction
B. Benzene condensation
C. Hydroformylation
D. Cellemense
10 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20

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