More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Chemistry Chapter 20 Aromatic Hydrocarbons Online Test MCQs With Answers
Question # 1
Characterstics of aromaic are:
Choose an answer
how hydrogen carbon ratio than alkanes
characterstics oudour
a &B
Characterstics properties
Previous
Skip
Next
Question # 2
Among the following, poly cyclic compound is:
Choose an answer
styrene
cumene
napthalene
xylene
Previous
Skip
Next
Question # 3
Monosubstituted benzene can have disubstitution at position
Choose an answer
ortho
meta
para
a, b, c
Previous
Skip
Next
Question # 4
The electrophile in aromatic sulphontion is:
Choose an answer
H
2
SO
4
HSO
4
SO
3
SO
3+
Previous
Skip
Next
Question # 5
Bond angle in benzene is
Choose an answer
109.5°
180°
120°
107.20
Previous
Skip
Next
Question # 6
Which is the property of benzene?
Choose an answer
decolourizes KMnO
4
straight chain structure
only double bond is present
triple and double bond
Previous
Skip
Next
Question # 7
Which compound is the most reactvie one:
Choose an answer
benzene
ethene
ethane
ethyne
Previous
Skip
Next
Question # 8
The benzene molecule contains
Choose an answer
Three double bond
Two double bond
One double bond
Delocalized pie electron charge
Previous
Skip
Next
Question # 9
Which of the following is explosive?
Choose an answer
Trinitrophenol
Nitrophenol
Nitromethane
Nitrobenzene
Previous
Skip
Next
Question # 10
Resonance energy of benzene is (in KJ mol
-1
):
Choose an answer
120
150
170
180
Previous
Skip
Next
Question # 11
Empirical formula mass of benzene is times lesser than molecular formula mass
Choose an answer
four
five
six
seven
Previous
Skip
Next
Question # 12
Benzene acid can be prepared from the oxidation of:
Choose an answer
benzene
ethyl benzene
benzonic acid
toluene
Previous
Skip
Next
Question # 13
Ratio of carbon to hydrogen in aromatic compounds is
Choose an answer
Low than alkanes
High than alkanes
Low than alkenes not high than alkanes
High than high than alkenes
Previous
Skip
Next
Question # 14
Benzene gives reactions generally
Choose an answer
electrophilic
addition substitution
synthesis
addition and electrophilic substitution
Previous
Skip
Next
Question # 15
The conversion of n-hexane into benzene by heating in the presence of Cr
2
O
3 is called:
Choose an answer
Isomerization
Aromatization
Dealkylation
Rearrangment
Previous
Skip
Next
Question # 16
Acylation of benzene to produce aliphatic aromatic ketones is known as:
Choose an answer
Friedel Craft's reaction
Benzene condensation
Hydroformylation
Cellemense
Previous
Skip
Next
Question # 17
Among the following, poly cyclic compound is
Choose an answer
styrene
cumene
naphthalene
xylene
Previous
Skip
Next
Question # 18
Arenes are also called
Choose an answer
atom
hydrocarbons
aromatic
benzene
Previous
Skip
Next
Question # 19
Monosubstituted benzene can have disubstitution at position:
Choose an answer
Ortho
meta
para
a, b, c
Previous
Skip
Next
Question # 20
The conversion of n-hexane into benzene by heating in the presence of CO, is called
Choose an answer
lsomerization
Aromatization
Dealkylation
Rearrangement
Previous
Skip
Next
Question # 21
Ratio of carbon to hydrogen in aromatic compounds is:
Choose an answer
Low than alkanes
High than alkanes
Low than alkanes not high than alkanes
High than alkanes
Previous
Skip
Next
Question # 22
Ozonolysis of benzene gives:
Choose an answer
Nitration
sulphonation
ozonide
glyoxal
Previous
Skip
Next
Question # 23
Benzene gives reactions generally:
Choose an answer
Electropholic subsitution
addition
synthesis
addition and electropholic subsitution
Previous
Skip
Next
Question # 24
Acyiation of benzene to produce aliphatic aromatic ketones is known as
Choose an answer
Friedel Craft's reaction
benzenecondensation
hydroformylation
Clemmensen reduction
Previous
Skip
Next
Question # 25
Which is the property of benzene:
Choose an answer
Decolourizes KMnO
4
straight chain structure
only double bond is present
triple and double bond
Previous
Skip
Next
Question # 26
Benzoic acid can be prepared from the oxidation of
Choose an answer
benzene
ethyl benzene
benzoic acid
toluene
Previous
Skip
Next
Question # 27
Simplest aromatic compound is
Choose an answer
bezene
toluene
aniline
phenol
Previous
Skip
Next
Question # 28
Which compound is the most reactive one?
Choose an answer
benzene
ethene
ethane
ethyne
Previous
Skip
Next
Question # 29
Which term was derived from atomos?
Choose an answer
atom
hydrocarbon
aromatic
aliphatic
Previous
Skip
Next
Question # 30
The hydridization in benzene is
Choose an answer
sp
3
sp
2
sp
4
dsp
2
Previous
Skip
Next
Back