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

Ozonolysis of benzene gives:

Question # 2

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

Question # 3

Aromatic compounds burn with sooty flame cause:

Question # 4

Benzoic acid can be prepared from the oxidation of

Question # 5

Benzene acid can be prepared from the oxidation of:

Question # 6

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 7

During nitration of benzene. the active nitrating agent is

Question # 8

Benzene cannot undergo:

Question # 9

Aromatic hydrocarbons are derivatives of

Question # 10

Simple aromatic compound is:

Question # 11

Ratio of carbon to hydrogen in aromatic compounds is

Question # 12

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

Question # 13

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

Question # 14

Aroma meas:

Question # 15

Which of the following is explosive?

Question # 16

Ozonolysis of benzene gives

Question # 17

The benzene molecule contains:

Question # 18

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

Question # 19

Kekule structures contributed towards actual structure of benzene

Question # 20

Aromatic hydrocarbons are the derivatives of:

Question # 21

Among the following, poly cyclic compound is:

Question # 22

The electrophile in aromatic sulphontion is:

Question # 23

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

Question # 24

Benzene gives reactions generally:

Question # 25

Kekule structures contributed towards actual structure of benzene

Question # 26

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

Question # 27

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

Question # 28

During nitration of benzene, the active nitrating agent is:

Question # 29

Which is the property of benzene?

Question # 30

Which terms was derived from " aroma"?

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
2 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
3 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
4 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
5 The benzene molecule contains:
A. Three double bond
B. Two double bond
C. One double bond
D. DelocalizedᏘ electron charge
6 Aroma meas:
A. Fragrant
B. Invisible
C. latest affinityt
D. benzene
7 Bond angle in benzene is :
A. 109..5o
B. 180o
C. 120o
D. 107.2o
8 Resonance energy of benzene is (in KJ mol-1)
A. 120
B. 150
C. 170
D. 180
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 Arenes are also called
A. atom
B. hydrocarbons
C. aromatic
D. benzene

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