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

Aromatic compounds burn with sooty flame cause

Question # 2

Aroma meas:

Question # 3

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

Question # 4

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

Question # 5

Among the following, poly cyclic compound is:

Question # 6

Benzene gives reactions generally:

Question # 7

Monosubstituted benzene can have disubstitution at position:

Question # 8

The electrophile in aromatic sulphonation Is

Question # 9

Benzoic acid can be prepared from the oxidation of

Question # 10

Bond angle in benzene is :

Question # 11

Benzene was discovered by first of all:

Question # 12

The hybirdization in benzene is:

Question # 13

Kekule structures contributed towards actual structure of benzene

Question # 14

Which compound is the most reactvie one:

Question # 15

The benzene molecule contains

Question # 16

Simplest aromatic compound is

Question # 17

Which is the property of benzene:

Question # 18

Benzene gives reactions generally:

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Which is the property of benzene?

Question # 23

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

Question # 24

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

Question # 25

Aromatic hydrocarbons are the derivatives of:

Question # 26

Which term was derived from atomos?

Question # 27

Which compound is the most reactive one?

Question # 28

The hydridization in benzene is

Question # 29

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

Question # 30

Simple aromatic compound is:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 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
2 The electrophile in aromatic sulphontion is:
A. H2SO4
B. HSO4
C. SO3
D. SO3+
3 Which term was derived from "aroma":
A. Atom
B. Hydrocarbons
C. aromatic
D. aliphatic
4 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
5 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
6 During nitration of benzene, the active nitrating agent is:
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
7 Amongst the following, the compound that can be most readily sulphonated is:
A. Toluene
B. Benzene
C. nitrobenzene
D. chlorobenzene
8 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
9 Benzene acid can be prepared from the oxidation of:
A. benzene
B. ethyl benzene
C. benzonic acid
D. toluene
10 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+

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