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

Benzene cannot undergo:

Question # 2

Which is the property of benzene:

Question # 3

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 4

Monosubstituted benzene can have disubstitution at position:

Question # 5

Among the following, poly cyclic compound is

Question # 6

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 7

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

Question # 8

Which of the following is explosive:

Question # 9

Benzene gives reactions generally

Question # 10

Aroma meas:

Question # 11

Benzene gives reactions generally:

Question # 12

Bond angle in benzene is

Question # 13

Ozonolysis of benzene gives:

Question # 14

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

Question # 15

Monosubstituted benzene can have disubstitution at position

Question # 16

Which terms was derived from " aroma"?

Question # 17

Which is the property of benzene?

Question # 18

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

Question # 19

Benzene gives reactions generally:

Question # 20

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

Question # 21

Which term was derived from atomos?

Question # 22

Simplest aromatic compound is

Question # 23

Benzene was discovered by first of all:

Question # 24

During nitration of benzene. the active nitrating agent is

Question # 25

During nitration of benzene, the active nitrating agent is:

Question # 26

The hydridization in benzene is

Question # 27

Benzene cannot undergo

Question # 28

Bond angle in benzene is :

Question # 29

Simple aromatic compound is:

Question # 30

Which compound is the most reactvie one:

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 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
2 empirical formula mass of benzene is time lesser than moleculer formula mass:
A. four
B. five
C. six
D. seven
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 Which compound is the most reactive one?
A. benzene
B. ethene
C. ethane
D. ethyne
5 Which compound is the most reactvie one:
A. benzene
B. ethene
C. ethane
D. ethyne
6 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
7 The benzene molecule contains
A. Three double bond
B. Two double bond
C. One double bond
D. Delocalized pie electron charge
8 The conversion of n-hexane into benzene by heating in the presence of CO, is called
A. lsomerization
B. Aromatization
C. Dealkylation
D. Rearrangement
9 The hybirdization in benzene is:
A. sp3
B. sp2
C. sp2
D. dsp2
10 Ozonolysis of benzene gives
A. nitration
B. sulphonation
C. ozonide
D. glyoxal

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