1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
A
a vinyl group
B
an isopropyl group
C
an acetylenic triple bond
D
two ethylenic double bonds
2
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is
A
propene
B
1–butene
C
2–butene
D
ethene
3
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains
A
mixture of o− and p−bromotoluenes
B
mixture of o− and p−dibromobenzenes
C
mixture of o− and p−bromoanilines
D
mixture of o− and m−bromotoluenes
4
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
In the following sequence of reactions, the alkene affords the compound ‘B’
CH3 - CH = CH - CH3 $$\buildrel {{O_3}} \over \longrightarrow $$ A $$\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Zn}^{H{}_2O}} $$ B
The compound B is
A
CH3CH2CHO
B
CH3COCH3
C
CH3CH2COCH3
D
CH3CHO
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