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 was discovered by first of all

Question # 2

Benzene cannot undergo

Question # 3

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

Question # 4

Which compound is the most reactive one?

Question # 5

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

Question # 6

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

Question # 7

Among the following, poly cyclic compound is

Question # 8

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 9

Benzene cannot undergo:

Question # 10

Aromatic hydrocarbons are derivatives of

Question # 11

Simple aromatic compound is:

Question # 12

Which of the following is explosive:

Question # 13

Ozonolysis of benzene gives

Question # 14

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

Question # 15

Among the following, poly cyclic compound is:

Question # 16

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

Question # 17

Simplest aromatic compound is

Question # 18

Which term was derived from "aroma":

Question # 19

Ozonolysis of benzene gives:

Question # 20

The benzene molecule contains

Question # 21

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

Question # 22

Kekule structures contributed towards actual structure of benzene

Question # 23

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

Question # 24

Ratio of carbon to hydrogen in aromatic compounds is:

Question # 25

Kekule structures contributed towards actual structure of benzene

Question # 26

Benzene gives reactions generally

Question # 27

Bond angle in benzene is

Question # 28

The electrophile in aromatic sulphonation Is

Question # 29

Aromatic compounds burn with sooty flame cause:

Question # 30

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

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
2 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
3 Benzene gives reactions generally
A. electrophilic
B. addition substitution
C. synthesis
D. addition and electrophilic substitution
4 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
5 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
6 Which is the property of benzene?
A. decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
7 The electrophile in aromatic sulphonation Is
A. H2SO4
B. HSO4-
C. SO3
D. SO3+
8 Resonance energy of benzene is (in KJ mol-1):
A. 120
B. 150
C. 170
D. 180
9 Which term was derived from "aroma":
A. Atom
B. Hydrocarbons
C. aromatic
D. aliphatic
10 Simple aromatic compound is:
A. benzene
B. toluene
C. aniline
D. phenol

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