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Chemistry Class 12 Chapter 9
Aromatic Hydrocarbons
Test 9
1.
Which is called the benzyle radical?
C
6
H
5
C
6
H
5-
C
C
6
H
5
C
6
H
5-
CH
2-
2.
Toluene can be converted into benzoic acid in presence of?
Acidified KMnO
4
Zn dust
Mixture of nitric and sulphuric acid
Dilute nitric acid
3.
Which compound form benzoic acid on oxidation with strong oxidation agent?
Toluene
Ethyle benzene
All
n-propyle benzene
4.
Which group is meta directing?
-CH
3
-NH
2
-OH
-NO
2
5.
The benzene molecule is?
Trigonal
Hexagonal planer
None of these
Tetrahedral
6.
The hydrolysis of benzenetriozonide will yield three moles of?
benzaldehyde
Glyoxal
yoxime
Glycol
7.
Which is the benzal chloride?
C
6
H
5-
Cl
C
6
H
5-
CHCl
2
C
6
H
5-
CH
2
Cl
2
8.
Replacement of hydrogen by alkyl group in presence of alkyl halide is called?
Dow’s process
Friedel craft acylation
Clemenson reaction
Friedel craft alkylation
9.
Which is the formula of benzenetrinitrozonide?
C
6
H
6
O
9
C
6
H
6
O
6
C
6
H
5
O
9
C
6
H
5
O
8
10.
Which of the following ways stability of benzene can be shown?
Resonance method
All of these
Atomic orbital treatment
Resonance energy
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