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

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

Question # 2

Which compound is the most reactive one?

Question # 3

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

Question # 4

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 5

The benzene molecule contains:

Question # 6

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

Question # 7

Among the following, poly cyclic compound is:

Question # 8

Simple aromatic compound is:

Question # 9

Which terms was derived from " aroma"?

Question # 10

Benzene acid can be prepared from the oxidation of:

Question # 11

Which compound is the most reactvie one:

Question # 12

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

Question # 13

The electrophile in aromatic sulphonation Is

Question # 14

Benzene was discovered by first of all:

Question # 15

Aromatic hydrocarbons are derivatives of

Question # 16

Aroma meas:

Question # 17

During nitration of benzene. the active nitrating agent is

Question # 18

Which term was derived from "aroma":

Question # 19

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

Question # 20

Kekule structures contributed towards actual structure of benzene

Question # 21

Bond angle in benzene is :

Question # 22

Monosubstituted benzene can have disubstitution at position

Question # 23

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 24

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

Question # 25

Aromatic compounds burn with sooty flame cause:

Question # 26

The electrophile in aromatic sulphontion is:

Question # 27

Among the following, poly cyclic compound is

Question # 28

Kekule structures contributed towards actual structure of benzene

Question # 29

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

Question # 30

Aromatic compounds burn with sooty flame cause

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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 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
3 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
4 Acylation of benzene to produce aliphatic aromatic ketones is known as:
A. Friedel Craft's reaction
B. Benzene condensation
C. Hydroformylation
D. Cellemense
5 The hydridization in benzene is
A. sp3
B. sp2
C. sp4
D. dsp2
6 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
7 Benzene gives reactions generally:
A. Electropholic subsitution
B. addition
C. synthesis
D. addition and electropholic subsitution
8 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
9 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
10 During nitration of benzene. the active nitrating agent is
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3

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