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Chemistry Class 12 Chapter 9
Aromatic Hydrocarbons
Test 10
1.
The function of anhydrous aluminum chloride in the Friedel craft reaction is?
To absorb hydrochloric acid
Absorb water
To produce an electrophile
To produce nucleophile
2.
Which one is the most active electrophile nitration?
Benzene
Toluene
Nitrobenzene
Benzoic acid
3.
Which xylene is most easily sulphonated?
All have equal capacity
Ortho
Meta
Para
4.
The hybridization state of carbon atom in benzene is?
sp
2
&sp
3
sp
3
sp
sp
2
5.
The benzene molecule have an angle of?
120
o
90
o
360
o
180
o
6.
Aromatic compounds burns with sooty flame because?
Resist reaction with air
High % of hydrogen
Have a ring structure
High % of carbon
7.
Which product is formed when toluene is treated with alkaline KMnO4?
Acetic acid
Benzophenone
Benzoic acid
Benzoic acid
8.
Benzene reacts with ozone to form?
Benzene diozonide
Benzene triozonide
Phenol
Benzene monozonide
9.
Which of the following group deactivates benzene ring for electrophile substitution?
Amino
Hydroxyl
Methyl
Chlorine
10.
Benzene can not undergoes?
Addition reaction
Oxidation reaction
Elimination reaction
Substitution reaction
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