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

Aromatic hydrocarbons are the derivatives of:

Question # 2

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

Question # 3

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

Question # 4

Aromatic compounds burn with sooty flame cause

Question # 5

Which term was derived from atomos?

Question # 6

The hydridization in benzene is

Question # 7

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

Question # 8

Ozonolysis of benzene gives

Question # 9

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

Question # 10

Benzene acid can be prepared from the oxidation of:

Question # 11

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

Question # 12

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 13

The electrophile in aromatic sulphonation Is

Question # 14

Which terms was derived from " aroma"?

Question # 15

Ozonolysis of benzene gives:

Question # 16

Aromatic hydrocarbons are derivatives of

Question # 17

Monosubstituted benzene can have disubstitution at position:

Question # 18

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

Question # 19

Simple aromatic compound is:

Question # 20

Bond angle in benzene is

Question # 21

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

Question # 22

Which is the property of benzene:

Question # 23

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

Question # 24

Which is the property of benzene?

Question # 25

Among the following, poly cyclic compound is

Question # 26

Which of the following is explosive:

Question # 27

Which term was derived from "aroma":

Question # 28

Benzene gives reactions generally:

Question # 29

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 30

The electrophile in aromatic sulphontion is:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
2 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20
3 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
4 During nitration of benzene. the active nitrating agent is
A. NO3-1
B. NO2+
C. NO2-1
D. HNO3
5 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
6 Simplest aromatic compound is
A. bezene
B. toluene
C. aniline
D. phenol
7 Which of the following is explosive:
A. Trinitropheonal
B. Nitropheonal
C. Nitromethane
D. Nitrobenzene
8 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
9 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
10 Benzene reacts with Cl, in sunlight to give the end product
A. C6H6Cl6
B. C6H6Cl
C. O - C6H4Cl2
D. P-C6H4Cl2

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