1
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution ?
A
0.190
B
0.086
C
0.050
D
0.100
2
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
The degree of dissociation ($$\alpha$$ ) of a weak electrolyte, AxBy is related to van’t Hoff factor (i) by the expression :
A
$$\alpha = {{i - 1} \over {x + y + 1}}$$
B
$$\alpha = {{x + y - 1} \over {i - 1}}$$
C
$$\alpha = {{x + y + 1} \over {i - 1}}$$
D
$$\alpha = {{i - 1} \over {(x + y - 1)}}$$
3
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
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Identify the compound that exhibits tautomerism.
A
Lactic acid
B
2-Pentanone
C
Pheno
D
2- Butene
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