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

Kekule structures contributed towards actual structure of benzene

Question # 2

Which term was derived from "aroma":

Question # 3

The benzene molecule contains

Question # 4

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

Question # 5

The hydridization in benzene is

Question # 6

Aromatic hydrocarbons are the derivatives of:

Question # 7

Which is the property of benzene?

Question # 8

Which of the following is explosive?

Question # 9

Benzene acid can be prepared from the oxidation of:

Question # 10

Simplest aromatic compound is

Question # 11

Benzene gives reactions generally:

Question # 12

Benzene gives reactions generally

Question # 13

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

Question # 14

Arenes are also called

Question # 15

Characterstics of aromaic are:

Question # 16

Aroma meas:

Question # 17

Benzoic acid can be prepared from the oxidation of

Question # 18

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

Question # 19

Among the following, poly cyclic compound is

Question # 20

During nitration of benzene. the active nitrating agent is

Question # 21

Monosubstituted benzene can have disubstitution at position:

Question # 22

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

Question # 23

Monosubstituted benzene can have disubstitution at position

Question # 24

Which is the property of benzene:

Question # 25

The benzene molecule contains:

Question # 26

The electrophile in aromatic sulphontion is:

Question # 27

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

Question # 28

Simple aromatic compound is:

Question # 29

Which terms was derived from " aroma"?

Question # 30

Bond angle in benzene is

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ECAT Class 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 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
3 Amongst the following, the compound that can be most readily sulphonated is:
A. Toluene
B. Benzene
C. nitrobenzene
D. chlorobenzene
4 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
5 Benzene cannot undergo:
A. Substitutions reactions
B. Addition reactions
C. Oxidation reactions
D. Elimination reactions
6 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20
7 The conversion of n-hexane into benzene by heating in the presence of CO, is called
A. lsomerization
B. Aromatization
C. Dealkylation
D. Rearrangement
8 Which of the following acid can be used as a catalyst in Friedel craft's reaction
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
9 Ozonolysis of benzene gives:
A. Nitration
B. sulphonation
C. ozonide
D. glyoxal
10 Benzene reacts with Cl, in sunlight to give the end product
A. C6H6Cl6
B. C6H6Cl
C. O - C6H4Cl2
D. P-C6H4Cl2

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