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

Which of the following is explosive:

Question # 2

Aromatic compounds burn with sooty flame cause:

Question # 3

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 4

Benzene gives reactions generally:

Question # 5

Which terms was derived from " aroma"?

Question # 6

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

Question # 7

Benzene gives reactions generally

Question # 8

Kekule structures contributed towards actual structure of benzene

Question # 9

The benzene molecule contains

Question # 10

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

Question # 11

Benzene gives reactions generally:

Question # 12

Aromatic compounds burn with sooty flame cause

Question # 13

Which term was derived from atomos?

Question # 14

Benzene cannot undergo:

Question # 15

The hydridization in benzene is

Question # 16

Benzene cannot undergo

Question # 17

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

Question # 18

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

Question # 19

Ozonolysis of benzene gives

Question # 20

Which compound is the most reactvie one:

Question # 21

Which is the property of benzene?

Question # 22

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

Question # 23

Benzoic acid can be prepared from the oxidation of

Question # 24

During nitration of benzene. the active nitrating agent is

Question # 25

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

Question # 26

The electrophile in aromatic sulphonation Is

Question # 27

Which compound is the most reactive one?

Question # 28

Benzene was discovered by first of all:

Question # 29

Which term was derived from "aroma":

Question # 30

Aroma meas:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Characterstics of aromaic are:
A. how hydrogen carbon ratio than alkanes
B. characterstics oudour
C. a &B
D. Characterstics properties
2 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
3 Benzene gives reactions generally
A. electrophilic
B. addition substitution
C. synthesis
D. addition and electrophilic substitution
4 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
5 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
6 Which terms was derived from " aroma"?
A. atom
B. hydrocarbons
C. aromatic
D. aliphatic
7 Among the following, poly cyclic compound is
A. styrene
B. cumene
C. naphthalene
D. xylene
8 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
9 During nitration of benzene. the active nitrating agent is
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
10 Benzene acid can be prepared from the oxidation of:
A. benzene
B. ethyl benzene
C. benzonic acid
D. toluene

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