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

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

Question # 2

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

Question # 3

Ozonolysis of benzene gives:

Question # 4

Benzene was discovered by first of all:

Question # 5

Aroma meas:

Question # 6

The electrophile in aromatic sulphontion is:

Question # 7

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

Question # 8

Aromatic hydrocarbons are derivatives of

Question # 9

Benzene gives reactions generally:

Question # 10

Kekule structures contributed towards actual structure of benzene

Question # 11

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

Question # 12

Aromatic compounds burn with sooty flame cause:

Question # 13

Which of the following is explosive:

Question # 14

Bond angle in benzene is

Question # 15

The benzene molecule contains

Question # 16

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

Question # 17

Which is the property of benzene:

Question # 18

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

Question # 19

Benzene cannot undergo:

Question # 20

Ozonolysis of benzene gives

Question # 21

Benzene cannot undergo

Question # 22

Simplest aromatic compound is

Question # 23

Benzene gives reactions generally

Question # 24

Bond angle in benzene is :

Question # 25

Which compound is the most reactive one?

Question # 26

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

Question # 27

The hydridization in benzene is

Question # 28

Monosubstituted benzene can have disubstitution at position:

Question # 29

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

Question # 30

Kekule structures contributed towards actual structure of benzene

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
2 Among the following, poly cyclic compound is
A. styrene
B. cumene
C. naphthalene
D. xylene
3 Benzene cannot undergo:
A. Substitutions reactions
B. Addition reactions
C. Oxidation reactions
D. Elimination reactions
4 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
5 Simple aromatic compound is:
A. benzene
B. toluene
C. aniline
D. phenol
6 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
7 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
8 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
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 Amongst the following, the compound that can be most readily sulphonated is
A. toluene
B. benzene
C. nitrobenzene
D. chlorobenzene

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