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

Kekule structures contributed towards actual structure of benzene

Question # 2

Aromatic hydrocarbons are the derivatives of:

Question # 3

Ratio of carbon to hydrogen in aromatic compounds is

Question # 4

During nitration of benzene, the active nitrating agent is:

Question # 5

Monosubstituted benzene can have disubstitution at position:

Question # 6

Benzene gives reactions generally

Question # 7

Which is the property of benzene?

Question # 8

The electrophile in aromatic sulphonation Is

Question # 9

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

Question # 10

Among the following, poly cyclic compound is

Question # 11

Aromatic compounds burn with sooty flame cause

Question # 12

The hybirdization in benzene is:

Question # 13

Which terms was derived from " aroma"?

Question # 14

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 15

Benzene gives reactions generally:

Question # 16

The benzene molecule contains:

Question # 17

The hydridization in benzene is

Question # 18

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

Question # 19

Benzoic acid can be prepared from the oxidation of

Question # 20

Which of the following is explosive:

Question # 21

Benzene was discovered by first of all:

Question # 22

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

Question # 23

Benzene was discovered by first of all

Question # 24

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

Question # 25

Ozonolysis of benzene gives:

Question # 26

The electrophile in aromatic sulphontion is:

Question # 27

Benzene cannot undergo:

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Acylation of benzene to produce aliphatic aromatic ketones is known as:
A. Friedel Craft's reaction
B. Benzene condensation
C. Hydroformylation
D. Cellemense
2 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
3 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
4 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
5 Aromatic compounds burn with sooty flame cause:
A. They have high percentage of hydrogan
B. They have ring structure
C. They have high percentage of carbon
D. They resist reaction with air
6 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
7 Which term was derived from "aroma":
A. Atom
B. Hydrocarbons
C. aromatic
D. aliphatic
8 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
9 Which is the property of benzene?
A. decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
10 Ratio of carbon to hydrogen in aromatic compounds is:
A. Low than alkanes
B. High than alkanes
C. Low than alkanes not high than alkanes
D. High than alkanes

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