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 is the property of benzene:

Question # 2

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

Question # 3

The electrophile in aromatic sulphonation Is

Question # 4

Aromatic hydrocarbons are derivatives of

Question # 5

Benzene gives reactions generally:

Question # 6

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

Question # 7

Simple aromatic compound is:

Question # 8

Which term was derived from "aroma":

Question # 9

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

Question # 10

Which term was derived from atomos?

Question # 11

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

Question # 12

Which of the following is explosive?

Question # 13

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

Question # 14

Ozonolysis of benzene gives

Question # 15

The hybirdization in benzene is:

Question # 16

Benzene gives reactions generally

Question # 17

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

Question # 18

Which terms was derived from " aroma"?

Question # 19

Kekule structures contributed towards actual structure of benzene

Question # 20

Benzene was discovered by first of all

Question # 21

Aromatic compounds burn with sooty flame cause:

Question # 22

The electrophile in aromatic sulphontion is:

Question # 23

Simplest aromatic compound is

Question # 24

Bond angle in benzene is :

Question # 25

Which is the property of benzene?

Question # 26

Which compound is the most reactive one?

Question # 27

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

Question # 28

Aromatic hydrocarbons are the derivatives of:

Question # 29

Which compound is the most reactvie one:

Question # 30

Ratio of carbon to hydrogen in aromatic compounds is

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
2 The hydridization in benzene is
A. sp3
B. sp2
C. sp4
D. dsp2
3 Monosubstituted benzene can have disubstitution at position:
A. Ortho
B. meta
C. para
D. a, b, c
4 The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:
A. Isomerization
B. Aromatization
C. Dealkylation
D. Rearrangment
5 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
6 Which compound is the most reactvie one:
A. benzene
B. ethene
C. ethane
D. ethyne
7 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
8 Ozonolysis of benzene gives:
A. Nitration
B. sulphonation
C. ozonide
D. glyoxal
9 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
10 Benzene gives reactions generally:
A. Electropholic subsitution
B. addition
C. synthesis
D. addition and electropholic subsitution

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