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 compound is the most reactvie one:

Question # 2

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

Question # 3

Simple aromatic compound is:

Question # 4

The hydridization in benzene is

Question # 5

Benzene gives reactions generally:

Question # 6

Which term was derived from atomos?

Question # 7

During nitration of benzene, the active nitrating agent is:

Question # 8

Which is the property of benzene?

Question # 9

Characterstics of aromaic are:

Question # 10

Benzene was discovered by first of all

Question # 11

Which compound is the most reactive one?

Question # 12

Bond angle in benzene is

Question # 13

Bond angle in benzene is :

Question # 14

Aromatic compounds burn with sooty flame cause:

Question # 15

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

Question # 16

Benzoic acid can be prepared from the oxidation of

Question # 17

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 18

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

Question # 19

Benzene cannot undergo:

Question # 20

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

Question # 21

Monosubstituted benzene can have disubstitution at position

Question # 22

Ozonolysis of benzene gives

Question # 23

Benzene gives reactions generally

Question # 24

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

Question # 25

The benzene molecule contains:

Question # 26

Aromatic hydrocarbons are the derivatives of:

Question # 27

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 28

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

Question # 29

The electrophile in aromatic sulphontion is:

Question # 30

Benzene cannot undergo

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
2 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
3 Aromatic hydrocarbons are the derivatives of:
A. Normal series of parrafins
B. Alkene
C. Benzene
D. Cyclohexane
4 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
5 Resonance energy of benzene is (in KJ mol-1):
A. 120
B. 150
C. 170
D. 180
6 The conversion of n-hexane into benzene by heating in the presence of CO, is called
A. lsomerization
B. Aromatization
C. Dealkylation
D. Rearrangement
7 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
8 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
9 Which of the following is explosive?
A. Trinitrophenol
B. Nitrophenol
C. Nitromethane
D. Nitrobenzene
10 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3

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