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

Benzene gives reactions generally

Question # 3

Aromatic hydrocarbons are the derivatives of:

Question # 4

Among the following, poly cyclic compound is

Question # 5

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

Question # 6

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

Question # 7

Bond angle in benzene is :

Question # 8

The hybirdization in benzene is:

Question # 9

During nitration of benzene. the active nitrating agent is

Question # 10

Kekule structures contributed towards actual structure of benzene

Question # 11

Which term was derived from atomos?

Question # 12

During nitration of benzene, the active nitrating agent is:

Question # 13

The benzene molecule contains:

Question # 14

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

Question # 15

Benzene gives reactions generally:

Question # 16

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

Question # 17

Which of the following is explosive:

Question # 18

Ozonolysis of benzene gives

Question # 19

Aromatic compounds burn with sooty flame cause:

Question # 20

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

Question # 21

Benzoic acid can be prepared from the oxidation of

Question # 22

Monosubstituted benzene can have disubstitution at position

Question # 23

Benzene gives reactions generally:

Question # 24

The electrophile in aromatic sulphonation Is

Question # 25

Benzene was discovered by first of all:

Question # 26

Bond angle in benzene is

Question # 27

Which is the property of benzene?

Question # 28

Which term was derived from "aroma":

Question # 29

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

Question # 30

Simplest aromatic compound is

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Ratio of carbon to hydrogen in aromatic compounds is:
A. Low than alkanes
B. High than alkanes
C. Low than alkanes not high than alkanes
D. High than alkanes
2 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
3 Characterstics of aromaic are:
A. how hydrogen carbon ratio than alkanes
B. characterstics oudour
C. a &B
D. Characterstics properties
4 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
5 Benzoic acid can be prepared from the oxidation of
A. benzene
B. ethyl benzene
C. benzoic acid
D. toluene
6 Benzene reacts with Cl, in sunlight to give the end product
A. C6H6Cl6
B. C6H6Cl
C. O - C6H4Cl2
D. P-C6H4Cl2
7 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
8 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
9 Among the following, poly cyclic compound is
A. styrene
B. cumene
C. naphthalene
D. xylene
10 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20

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