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

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Question # 1

Ozonolysis of benzene gives

Question # 2

Aromatic hydrocarbons are derivatives of

Question # 3

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

Question # 4

Benzene gives reactions generally:

Question # 5

Kekule structures contributed towards actual structure of benzene

Question # 6

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

Question # 7

Which compound is the most reactvie one:

Question # 8

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

Question # 9

Bond angle in benzene is

Question # 10

The benzene molecule contains:

Question # 11

The electrophile in aromatic sulphonation Is

Question # 12

Arenes are also called

Question # 13

Benzoic acid can be prepared from the oxidation of

Question # 14

Ratio of carbon to hydrogen in aromatic compounds is

Question # 15

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

Question # 16

Aroma meas:

Question # 17

Simplest aromatic compound is

Question # 18

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

Question # 19

Acyiation of benzene to produce aliphatic aromatic ketones is known as

Question # 20

Benzene cannot undergo:

Question # 21

Which term was derived from atomos?

Question # 22

Benzene gives reactions generally:

Question # 23

Monosubstituted benzene can have disubstitution at position:

Question # 24

The hydridization in benzene is

Question # 25

Which is the property of benzene:

Question # 26

The hybirdization in benzene is:

Question # 27

During nitration of benzene. the active nitrating agent is

Question # 28

Simple aromatic compound is:

Question # 29

Which of the following is explosive?

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 Benzene cannot undergo
A. substitution reactions
B. addition reactions
C. oxidation reactions
D. elimination reactions
2 Benzene gives reactions generally
A. electrophilic
B. addition substitution
C. synthesis
D. addition and electrophilic substitution
3 Bond angle in benzene is
A. 109.5°
B. 180°
C. 120°
D. 107.20
4 Aromatic hydrocarbons are the derivatives of:
A. Normal series of parrafins
B. Alkene
C. Benzene
D. Cyclohexane
5 Benzene was discovered by first of all
A. Michael Faraday
B. Hofmann
C. Ainderson
D. Sorenbon
6 Aromatic compounds burn with sooty flame cause
A. They have high percentage of hydrogen
B. They have a ring structure
C. They have high percentage of carbon
D. They resist reaction with air
7 Resonance energy of benzene is (in KJ mol-1):
A. 120
B. 150
C. 170
D. 180
8 Which of the following acid can be used as a catalyst in Friedel Craft's reaction?
A. AlCl3
B. HNO3
C. BeCl2
D. NaCl
9 Among the following, poly cyclic compound is
A. styrene
B. cumene
C. naphthalene
D. xylene
10 The hydridization in benzene is
A. sp3
B. sp2
C. sp4
D. dsp2

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