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

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

Question # 3

Which compound is the most reactvie one:

Question # 4

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

Question # 5

Which is the property of benzene?

Question # 6

Bond angle in benzene is

Question # 7

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

Question # 8

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

Question # 9

Bond angle in benzene is :

Question # 10

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

Question # 11

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

Question # 12

Kekule structures contributed towards actual structure of benzene

Question # 13

Which term was derived from "aroma":

Question # 14

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

Question # 15

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

Question # 16

During nitration of benzene, the active nitrating agent is:

Question # 17

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

Question # 18

Ozonolysis of benzene gives

Question # 19

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 20

Ozonolysis of benzene gives:

Question # 21

Benzene was discovered by first of all

Question # 22

Which of the following is explosive:

Question # 23

The hydridization in benzene is

Question # 24

Benzene cannot undergo

Question # 25

Benzene gives reactions generally:

Question # 26

Aromatic hydrocarbons are derivatives of

Question # 27

Which compound is the most reactive one?

Question # 28

Benzoic acid can be prepared from the oxidation of

Question # 29

During nitration of benzene. the active nitrating agent is

Question # 30

Kekule structures contributed towards actual structure of benzene

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.# Question Answer
1 Kekule structures contributed towards actual structure of benzene
A. 60%
B. 70%
C. 80%
D. 90%
2 Acyiation of benzene to produce aliphatic aromatic ketones is known as
A. Friedel Craft's reaction
B. benzenecondensation
C. hydroformylation
D.
Clemmensen reduction
3 Arenes are also called
A. atom
B. hydrocarbons
C. aromatic
D. benzene
4 Benzene acid can be prepared from the oxidation of:
A. benzene
B. ethyl benzene
C. benzonic acid
D. toluene
5 Aromatic hydrocarbons are derivatives of
A. normal series of paraffins
B. alkene
C. benzene
D. cyclohexane
6 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
7 Which is the property of benzene:
A. Decolourizes KMnO4
B. straight chain structure
C. only double bond is present
D. triple and double bond
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 Which of the following acid can be used as a catalyst in Friedel craft's reaction
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
10 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl

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