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

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

Question # 2

Which is the property of benzene:

Question # 3

Aromatic hydrocarbons are derivatives of

Question # 4

Bond angle in benzene is

Question # 5

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

Question # 6

Benzene cannot undergo:

Question # 7

Simple aromatic compound is:

Question # 8

Which terms was derived from " aroma"?

Question # 9

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 10

Benzene was discovered by first of all

Question # 11

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

Question # 12

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

Question # 13

The electrophile in aromatic sulphonation Is

Question # 14

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

Question # 15

Ozonolysis of benzene gives:

Question # 16

Characterstics of aromaic are:

Question # 17

Aromatic hydrocarbons are the derivatives of:

Question # 18

Which is the property of benzene?

Question # 19

Which term was derived from "aroma":

Question # 20

Bond angle in benzene is :

Question # 21

Arenes are also called

Question # 22

Benzene was discovered by first of all:

Question # 23

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

Question # 24

Ratio of carbon to hydrogen in aromatic compounds is

Question # 25

Aromatic compounds burn with sooty flame cause

Question # 26

Benzoic acid can be prepared from the oxidation of

Question # 27

Kekule structures contributed towards actual structure of benzene

Question # 28

The benzene molecule contains

Question # 29

Which compound is the most reactvie one:

Question # 30

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

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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 Acylation of benzene to produce aliphatic aromatic ketones is known as:
A. Friedel Craft's reaction
B. Benzene condensation
C. Hydroformylation
D. Cellemense
3 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
4 Benzene acid can be prepared from the oxidation of:
A. benzene
B. ethyl benzene
C. benzonic acid
D. toluene
5 Which terms was derived from " aroma"?
A. atom
B. hydrocarbons
C. aromatic
D. aliphatic
6 Which term was derived from atomos?
A. atom
B. hydrocarbon
C. aromatic
D. aliphatic
7 Empirical formula mass of benzene is times lesser than molecular formula mass
A. four
B. five
C. six
D. seven
8 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
9 Which is the property of benzene?
A. decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
10 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane

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