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 is explosive:

Question # 2

Benzene was discovered by first of all

Question # 3

Arenes are also called

Question # 4

During nitration of benzene. the active nitrating agent is

Question # 5

Among the following, poly cyclic compound is:

Question # 6

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

Question # 7

Among the following, poly cyclic compound is

Question # 8

The electrophile in aromatic sulphonation Is

Question # 9

Ratio of carbon to hydrogen in aromatic compounds is

Question # 10

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

Question # 11

Which of the following is explosive?

Question # 12

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

Question # 13

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 14

Simplest aromatic compound is

Question # 15

Benzene gives reactions generally:

Question # 16

Bond angle in benzene is :

Question # 17

The hybirdization in benzene is:

Question # 18

Simple aromatic compound is:

Question # 19

Benzene acid can be prepared from the oxidation of:

Question # 20

The electrophile in aromatic sulphontion is:

Question # 21

Benzoic acid can be prepared from the oxidation of

Question # 22

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

Question # 23

Monosubstituted benzene can have disubstitution at position

Question # 24

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

Question # 25

The hydridization in benzene is

Question # 26

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

Question # 27

Benzene gives reactions generally

Question # 28

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

Question # 29

Which is the property of benzene:

Question # 30

Kekule structures contributed towards actual structure of benzene

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
2 Resonance energy of benzene is (in KJ mol-1)
A. 120
B. 150
C. 170
D. 180
3 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
4 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
5 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
6 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20
7 The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:
A. Isomerization
B. Aromatization
C. Dealkylation
D. Rearrangment
8 Which compound is the most reactvie one:
A. benzene
B. ethene
C. ethane
D. ethyne
9 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
10 Benzene acid can be prepared from the oxidation of:
A. benzene
B. ethyl benzene
C. benzonic acid
D. toluene

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