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

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

Question # 2

Ratio of carbon to hydrogen in aromatic compounds is

Question # 3

Which term was derived from atomos?

Question # 4

Benzene was discovered by first of all:

Question # 5

Aromatic hydrocarbons are the derivatives of:

Question # 6

Ozonolysis of benzene gives

Question # 7

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

Question # 8

The electrophile in aromatic sulphonation Is

Question # 9

Bond angle in benzene is

Question # 10

Aromatic hydrocarbons are derivatives of

Question # 11

Benzene gives reactions generally:

Question # 12

Simplest aromatic compound is

Question # 13

Among the following, poly cyclic compound is:

Question # 14

Simple aromatic compound is:

Question # 15

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

Question # 16

Benzene gives reactions generally

Question # 17

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

Question # 18

Which of the following is explosive?

Question # 19

Aroma meas:

Question # 20

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

Question # 21

Which compound is the most reactive one?

Question # 22

Benzene gives reactions generally:

Question # 23

Benzoic acid can be prepared from the oxidation of

Question # 24

Benzene was discovered by first of all

Question # 25

Benzene acid can be prepared from the oxidation of:

Question # 26

Monosubstituted benzene can have disubstitution at position:

Question # 27

Ozonolysis of benzene gives:

Question # 28

Aromatic compounds burn with sooty flame cause

Question # 29

Bond angle in benzene is :

Question # 30

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

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Resonance energy of benzene is (in KJ mol-1):
A. 120
B. 150
C. 170
D. 180
2 Ratio of carbon to hydrogen in aromatic compounds is
A. Low than alkanes
B. High than alkanes
C. Low than alkenes not high than alkanes
D. High than high than alkenes
3 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
4 Amongst the following, the compound that can be most readily sulphonated is
A. toluene
B. benzene
C. nitrobenzene
D. chlorobenzene
5 Which of the following is explosive?
A. Trinitrophenol
B. Nitrophenol
C. Nitromethane
D. Nitrobenzene
6 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
7 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
8 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
9 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
10 Resonance energy of benzene is (in KJ mol-1)
A. 120
B. 150
C. 170
D. 180

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